# Circumference And Area Word Problems Answer Key

Complete the circled questions on the Chapter 6 test worksheet. Washington Standards. Find the value of x 70 -110-60 X=GO 18. Assist students as needed. The area of a ircle is 31. This fits well with the definition of area which is the number of square units that will cover a closed figure. Displaying top 8 worksheets found for - Circumference Of Circle Worded Problems. Circumference and Area of Circles (A) – area and circumference of a circle worksheet answers | area and circumference of a circle worksheet answers Gallery for 9 Facts About Area And Circumference Of A Circle Worksheet Answers That Will Blow Your Mind | Area And Circumference Of A Circle Worksheet Answers. 11) Find the area of the circle pictured below, rounding your answer to 3 significant figures 12 cm [1] 12) Find the radius of a circle which has an area of 39 cm 2 [1] 13) Find the circumference of the circle pictured below, rounding your answer to 3 significant figures 9 cm [1] 14) Find the radius of a circle, where the circumference is: 44. When I feel that students are ready, I show them the paper that they will be doing. Math Word Problems: Money. calculate the area and circumference of a circle. 9 Area, Perimeter and Volume MEP Y9 Practice Book B. A teaching tool to help the understanding of area and perimeter of rectangles. Math activities, Math worksheets, Math printables for grade 5 & 6, Decimals, fractions, multiplication, algebra and more. com to see all the Common Core Standards unpacked. Created Date: 5/16/2016 2:37:15 PM. 2 pages plus answer sheet. The first is a sheet of geometry formulas that students may find useful in solving the word problems in the three worksheets. Three circle Venn Diagrams are a step up in complexity from two circle diagrams. They draw the outline of a garden on a grid and then perform. Click here for the Circumference worksheet answer key. Calculate its diameter. The area of all the surfaces of a 3-D shape. Equation word problems: super yoga (1 of 2) Equation word problem: super yoga (2 of 2) Writing expressions word problems. Find 1 & 2. 0 % Conquered Practice;. Calculate Circumference and Area of Circles from Radius (A) The Calculate Circumference and Area of Circles from Radius (A) Math Worksheet Page 2. Practice interesting area and circumference problems. Quadratic formula on the TI-89, word problems and adding and subtracting integers, Ratio Formula, functions statistics and trigonometry prentice hall help. Students are asked to calculate the circumference, the diameter, or the radius of circles, plus the perimeters of semi-circles and quarter circles. Word Problems Words to. Most of us think these are simple when the problem clearly tells you what to do but students often freeze up when faced with a word problem. The self paced quiz has no time limit so you can spend as much time. Grade 7 Maths Problems With Answers. It’s a piece of pie! The area the sector occupies depends on the radius of the circle and the angle between the two radii. Along with the Area of a circle worksheet, this was created for a Foundation GCSE class. pdf Math Worksheet Answer Key for Area, Circumference â€¦ Pythagorean Theorem Word Problems Answer Keys. Some of the worksheets for this concept are Finding the circumference of a circle, Perimeter circumference volume and surface area, Circle, 11 circumference and area of circles, Answer key area and perimeter, Area circumference, Area perimeter work, Measurement work circumference. Name: Super Teacher Worksheets - www. The amount of fencing to enclose a circular garden. " y is -- twice as large as 2 less than x " 2 times x-2 translates to y = 2 (x - 2). Generalization Ask the pupils: How do we solve problems on circumference? In solving problems involving circumference measure, know the diameter/radius and the formula. Perimeter Circumference Area. 5x11” paper. Find the area of the circle, rounding your answer to 3 significant figures. Area by Counting Squares. Helpful HintsSteps for solving perimeter or areaword problems:Look for clue words, decide: perimeteror area?Draw a pictureDecide on a formulaSolve 3. com, a math practice program for schools and individual families. Huge thanks to all individuals and organisations who share teaching resources. Note: we are just starting to discuss net diagrams, surface area and volume. Round your answer to the nearest tenth. 0 F LANlPl A 1rki8gRhFtesr Pr teFsZeGrav oezd 6. 4) Find the area of the circle pictured below, rounding your answer to 3 significant figures 8 cm [1] 5) The circumference of a circle is 80 cm. answers or tuition. MathScore EduFighter is one of the best math games on the Internet today. a: Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Find the area of the shaded region 14 Find Circles and Volumes Angle = 16. For detailed geometry worksheets, see the geometry packs. Use arc lengths to fi nd measures. com quizzes. Finding the volume and surface area of a cuboid. For instance there are many worksheet that you can print here, and if you want to preview the Circumference Of Circle Worksheet simply click the link or image and you will take to save page section. Circles and Circumference 2. HUMAN GENITALIA. When I feel that students are ready, I show them the paper that they will be doing. Related SOL G. 594 Chapter 11 Circumference, Area, and Volume 11. 8: Decision: Explain Your Solution. 5x11" paper. Geometry Word Problems No Problem! These worksheets practice math concepts explained in Geometry Word Problems: No Problem! (ISBN: 978-0-7660-3368-9), written by Rebecca Wingard-Nelson. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. Find the area of the circle. A portion of the circumference of a circle. Introduction to Multi-step Word problems has no practice problems. The base of a triangle is 14 inches and it's height is 2 inches. Math worksheets to improve student performance through fun math riddles and activities. Skill Checkpoint: Circumference and Area Word Problems. Getting students' heads around the ideas of perimeter and area can be a challenge, but not if students have these amazing worksheets. Free Math Practice problems for Pre-Algebra, Algebra, Geometry, SAT, ACT. Try a complete lesson on Perimeter and Circumference Word Problems, featuring video examples, interactive practice, self-tests, worksheets and more!. Solve real-world and mathematical problems involving angle measure, area, surface area, and volume. 1b Know the formulas for the circumference and area of a circle. 1 in² 22) area = 78. You'll encounter lots of different types of geometry problems in school, but many of them can be solved using the same basic approach. Find the value of x 70 -110-60 X=GO 18. c) find arc lengths and areas of sectors in circles. To find the circumference of a circle, use the formula pi x diameter = circumference. is the slant height of the cone. Circle worksheets circumference area radius and diameter worksheets. That is why you only need to enter r here to get the circumference The calculator will only accept positive value for r since a distance cannot be negative. We found some Images about Area And Circumference Worksheet Answer Key: Geometry worksheets with problems calculating a circle's area and circumference. 8 in² 5) 9 km 18 km 1017. Grade 5 math worksheets on finding the area of circles. 2 Example 1 A circle has a radius of 24 units. 21) area = 201. Using this Finding Areas Word Problems Worksheet, students find the area of squares and rectangles in real life word problems. Use circle images in some problems (randomly). When I feel that students are ready, I show them the paper that they will be doing. 30 per case IE; 2$ 4 case is the better buy because it is cheaper. Equation word problems: super yoga (1 of 2) Equation word problem: super yoga (2 of 2) Writing expressions word problems. QSC ID Skill Quantile Measure Resources; QSC169: Use concepts of positive numbers, negative numbers, and zero (e. Worksheet Calculate problems that involve the radius, diameter, circumference and area of circle. Spiral Review: Use the area or circumference formulas for circles to answer the word problems. Circle worksheets: Finding the circumference. Did you read through the lesson on Inequality Word Problems? Are you ready to practice inequalities by solving these word problems? Yes I do know the answer by now - but - I know you can do it! Now, I want you to prove it to yourself. The spray from a spinning lawn sprinkler makes a circle with a 40’ radius, what is the circumference and area of the circle? 2. For instance, you may need to find “X” and then find “Y. Calculate its radius. The area and circumference of a circle need to be measured while solving complicated problems and worksheets involving Trigonometry and advanced Geometry. Do not use circle images in any problems. Measuring Volume 36. in terms of ! ") and BOX this answer 4. Just choose the medium that suits your preference. Now we can just plug-n-chug this formula to write the equations of any circle. The area and circumference of a circle need to be measured while solving complicated problems and worksheets involving Trigonometry and advanced Geometry. Do not use circle images in any problems. For example, the surface area of a cube is the total area of all six of its sides. Solve real-life problems. Surface Area So now that we’ve learned all about the area and perimeter of 2-D (two dimensional) objects and polygons, we can explore the concept of surface area. Jumpstarters for Math Word Problems is designed to provide daily opportunities to practice solving a variety of word problems typically found in middle school. 35 to get 25. A portion of the circumference of a circle. the area of a triangle:A =. Free Lesson Plans. Teachers can use the word problem generators to create word problems for students. Perimeter and Area Can you tell the difference? 2. Get an answer for 'How do you solve a surface area problem? How do you find the surface area of a triangular prism and a cylinder?' and find homework help for other Math questions at eNotes. Area and Perimeter Word Problems - Concept - Examples with step by step solutions AREA AND PERIMETER WORD PROBLEMS In this section, we will learn, how to solve word problems on area and perimeter. Circles and Circumference 2. Three circle Venn Diagrams are a step up in complexity from two circle diagrams. These math problems involve : Scales and Time, Perimeter, Area, Volume, Imperial & Metric Measurements etc. QSC ID Skill Quantile Measure Resources; QSC169: Use concepts of positive numbers, negative numbers, and zero (e. Get instant scores and step-by-step solutions on submission. Area And Perimeter Of Triangles Worksheet Answers You should get 20 very similar answers (unless they are the sharing type then Calculating area and perimeter of triangles and quadrilaterals worksheets. Perimeter Circumference Area - Displaying top 8 worksheets found for this concept. Even More Area and Perimeter Word Problems The perimeter of a rectangular playground is 46 m. The area of an object is the amount of surface that the object occupies. Practice finding the radius and diameter of a circle using both vocabulary and visuals. Perimeter Area Circumference. Discover (and save!) your own Pins on Pinterest. Solve multiplication word problems. ExamView - Perimeter and Area. Here you will find all we have for Circumference And Area Of A Circle Worksheet. This is a complete collection for the entire work associated with Area in upper elementary geometry. Area and Perimeter Scavenger Hunt These 16 task cards are designed to be posted around the room, outside, or in the hallways. Displaying top 8 worksheets found for - Circumference Of Circle Worded Problems. 11 The student will use angles, arcs, chords, tangents, and secants to. 2 End of Goal 2 Sample Items. Since opposite faces of rectangles or cubes have the same area, you can also multiply each area by 2 and then find the sum of the areas of the faces. Check the book if it available for your country and user who already subscribe will have full access all. This lesson assumes that people already know how to calculate the “Circumference” and the “Area” of a Circle. Sometimes the squares don't match the shape exactly, but we can get an "approximate" answer. (Hint: word problems are units Identify what you are given and determine the unit and the time. I passed out th. When I feel that students are ready, I show them the paper that they will be doing. Primary SOL. Area by Counting Squares. A painter uses a roller to paint a wall. Word Problems. Easier to grade, more in-depth and best of all 100% FREE! Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade and more!. This allows teachers provide the most accurate information. Circumference Of Circle Worded Problems. Find the value of x. Click once in an ANSWER BOX and type in your answer; then click ENTER. 0 F LANlPl A 1rki8gRhFtesr Pr teFsZeGrav oezd 6. Friday No school. Lesson Notes. Posts about g-spot written by Tony. Mathslearn : Free printable KS3 maths worksheets, Key stage 3 Maths questions, exam questions and investigations for teachers to use freely within the classroom and students to use as practice for examinations and to help complement any existing scheme of work. This resource provides help to students struggling to visualise cuboid related problems. Word Problems Using Area, Volume, Surface Area 7. Complete this page and the next two. You can start playing for free! Circle Circumference - Sample Math Practice Problems The math problems below can be generated by MathScore. Can you draw a shape in which the area is numerically equal to its perimeter? And another? Can you draw a shape in which the perimeter is numerically twice the area? Can you draw a shape in which the area is numerically twice the perimeter? Can you make the area of your shape go up but the perimeter go down?. All of our Geometry Worksheets and printables are free for classroom and educational use. Once you know one, you can find all of the others -- It just takes a little math!. arc The answer to a division problem. for circumference of a circle (C = πd and C = 2πr) and an understanding of why both formulas are accurate. In general, the polygon with n sides having the largest area and a given perimeter is the regular polygon, which is closer to being a circle than is any irregular polygon with the same number of sides. Find the area of the circle. Here is the Circumference Of Circle Worksheet section. 5 ft² 10 ft. These math problems involve : Scales and Time, Perimeter, Area, Volume, Imperial & Metric Measurements etc. 10 The student will a) define p (pi) as the ratio of the circumference of a circle to its diameter; b) solve practical problems involving circumference and area of a circle, given the diameter or radius; c) solve practical problems involving area and perimeter; and d) describe and determine the volume and surface area of a rectangular prism. Radius, Diameter, and Circumference. Circle problems and questions with answers for grade 8 are presented. A dinner plate has a radius of 6 centimeters. Students are provided the radius or the diameter in customary units (worksheets 1-3) or metric units (worksheets 4-6). 6 yd 2 yd 20) circumference = 25. A diagram of the box is shown below. Demonstrates how to determine radius and circumference from an angle. We can also put the shape on a grid and count the number of squares: The rectangle has an area of 15. For word problems, some common surface area scenarios include: Wrapping a gift; Using material to make a 3D-shape. Here are some examples of word problems involving perimeter, and how to solve them: ----- The length of a rectangle is 12 cm more than the width. 0 F LANlPl A 1rki8gRhFtesr Pr teFsZeGrav oezd 6. Have them answer the word problem below. 4) Find the area of the circle pictured below, rounding your answer to 3 significant figures 8 cm [1] 5) The circumference of a circle is 80 cm. Words with tall letters like b, d, and k, along with letters that hang down like g, p, and q, take up two spots. You will often encounter word problems where two of the values in one of these formulas are given, and you are required to find the third. com is an online resource used every day by thousands of teachers, students and parents. 1) Radius = Diameter = Area = Circumference = 2) Radius = Diameter = Area = Circumference = 3) Radius = Diameter = Area = Circumference = 4) Radius = Diameter = Area = Circumference = 5) Radius = Diameter = Area = Circumference = 6) Radius = Diameter. Circumference Of Circle Worded Problems. The radius of dinner table is 6 meters. Lesson Notes. (It helps to draw pictures. For word problems, some common surface area scenarios include: Wrapping a gift; Using material to make a 3D-shape. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. Some problems give the radius and some give the diameter. What is the area of the Find the area and circumference of the quarter circle. A key skill in. Have them answer the word problem below. Area and Circumference of a Circle - Matching Worksheet Match the word problems to their answers. Improve your math knowledge with free questions in "Circles: calculate area, circumference, radius, and diameter" and thousands of other math skills. The area of a circle is the number of square units that it takes to fill the inside of the circle. Click Chapter 2 Test Review Key to check your answers on the study guide if needed! rules for adding, subtracting, multiplying, and dividing positive and negative integers. The resource works well on an interactive whiteboard. Dividing: Exponents Worksheets,Worksheet multiplying and dividing integers worksheet with answer key. Circles Circumference Area Arcs S Secants Tangents Power. Word Study Meets Math. After you click ENTER, a message will appear in the RESULTS BOX to indicate whether your answer is correct or incorrect. Geometry Review - This worksheet includes finding the circumference of a circle, the perimeter of a rectangle, and the area of a triangle and a rectangle. What is the area of this room? Theresa wants new carpeting for her family room. Always keep your workbook handy. Circumference Word Problems. Students will practice calculating area and perimeter of rectangles and work on identifying characteristics of a circle such as radius and diameter. A bicycle tire has a diameter of 24 inches. The worksheet will produce 9 problems per page. Students solve area and perimeter problems for regions made out of rectangles, quarter circles, semicircles, and circles, including solving for unknown lengths when the area or perimeter is given. superteacherworksheets. Step 3 Students follow the directions on the Measuring Area and Volume worksheet to calculate surface area and volume of varied cylinders and boxes created using the scissors and 8. These problems and questions deal with calculating circumference and area of circles. 4)--- 1 point 8. Key Concepts. Even More Area and Perimeter Word Problems Answer Key. We focus primarily on angles, shapes, perimeter and area. Round your answer to the nearest tenth for numbers 23-28. Finding an arc length when the angle is given in degrees We know that if θ is measured in radians, then the length of an arc is given by s = rθ. will learn how to calculate circumference and area of circles, the area of composite figures, to find surface areas and volumes of our child will also learn about similar figures and to solve problems by solving a simpler, your child will complete a variety of daily classroom assignments and activities and. THE *Education Center AMC 12/AHSME 2000 If circular arcs AC and BC have centers at B and A, respectively, then there exists a circle tangent to both AC and BC, and to AB. When a student has completed a test in Study Island, the answers to questions answered incorrectly are provided in most cases. Word Problems Words to. for circumference of a circle (C = πd and C = 2πr) and an understanding of why both formulas are accurate. Free Pythagorean Theorem Word Problems Task Cards. Do not use circle images in any problems. 11 The student will use angles, arcs, chords, tangents, and secants to. They draw the outline of a garden on a grid and then perform. area shaded sector circle circumference formula find the and of circles download worksheet kuta,area circle sector of with diameter 10 great definition circumference circles maze riddle color by number fun,area of circle sector worksheet hands on a activity free math ideas its circles answer key. Thus the area of the figure is 112 square units. Surface Area is the total area of the surface of a three-dimensional object. 1) Radius = Diameter = Area = Circumference = 2) Radius = Diameter = Area = Circumference = 3) Radius = Diameter = Area = Circumference = 4) Radius = Diameter = Area = Circumference = 5) Radius = Diameter = Area = Circumference = 6) Radius = Diameter. The amount of ribbon needed around a square window. Area and Perimeter Together Again 7. you is the u to glencoe. Solve equations of these forms fluently. h Worksheet by Kuta Software LLC. Teacher instructions with answer key + Student hardcopy (optional: if you would like them to show working out) included with link to the Google form to input the combinations. Based on Common Core CC Standard 7. The surface area is the combined area of all the faces of a three-dimensional shape. Grade 7 Maths Problems With Answers. Worksheets are 11 circumference and area of circles, Circle, Finding the circumference of a circle, Radius diameter circumference, Circles, Circles, Measurement work circumference and area of circles, Circle. Use circle images in some problems (randomly). Show all 125 answers. The self paced quiz has no time limit so you can spend as much time. 2 km² 24) 10. circumference practice worksheet pdf worksheets area and of a circle unique 8th grade free,area and circumference of circles four scavenger hunt worksheets answers math grade 7 word problems,circumference worksheets word problems of a circle for 5th grade 8 worksheet answer. To find the circumference of a circle, use the formula pi x diameter = circumference. Displaying all worksheets related to - Circles Circumference. Create the worksheets you need with Infinite Pre-Algebra. This worksheet is a great resources for the 5th, 6th Grade, 7th Grade, and 8th Grade. Perimeter Circumference Area. And a part of the circumference is called an Arc. We cover a wide range of geometry concepts. The distance. The equation is created and solved in detail and can be used to check your own work. Show all work and round to the. These area and perimeter word problem worksheets are great for kids practicing these skills. quotient Lines that have one and only one point in common. Volume & Surface Area. Example problems (attached) 4. the area of each circle: Find more solutions based on key concepts. Answers Answer Key 1-8 88 75 63 50 38 25 13 0 Ex) 2 5 2 4 10. a: Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Generalization Ask the pupils: How do we solve problems on circumference? In solving problems involving circumference measure, know the diameter/radius and the formula. A great activity for reviewing Area and Circumference of Circles! Diagrams and word problems are all included in the questions. Click on the links below to view sample pages. Students will: discover the relationship between the diameter and circumference of a circle. Lateral surface, right prism, right regular pyramid, frustum of a cone or pyramid, torus, surface area of a surface of revolution this page updated 19-jul-17 Mathwords: Terms and Formulas from Algebra I to Calculus. Area and Perimeter Scavenger Hunt These 16 task cards are designed to be posted around the room, outside, or in the hallways. After 2 hours he is at an altitude of 400 feet. Students match their answers at t. In this section we are going to look at another type of. Knowing how to calculate the area and circumference of circles is an important aspect of maths, that is why we have also provided the formulas so each child will soon be an ace at all things circles! Our circle problems worksheets have also been provided with answers. calculate area, circumference, radius, and diameter. These area and perimeter word problem worksheets are great for kids practicing these skills. Free trial available at KutaSoftware. Various shapes and units of measurement are used. circumference practice worksheet pdf worksheets area and of a circle unique 8th grade free,area and circumference of circles four scavenger hunt worksheets answers math grade 7 word problems,circumference worksheets word problems of a circle for 5th grade 8 worksheet answer. This Measurement Worksheet may be printed, downloaded or saved and used in your classroom, home school, or other educational environment to help someone learn math. This circle worksheet is great for practicing solving for the circumference area radius and. (It helps to draw pictures. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. Word problems with extra or missing information 5. Home Super Teacher Worksheets Division Word Problems, K5learning Answer Key,. This fits well with the definition of area which is the number of square units that will cover a closed figure. Recurso propio. Our circumference and area worksheets are designed to supplement our Circumference and Area of Circles lessons. Find the lateral area of triangular prisms. The worksheet will produce 9 problems per page. The equation is created and solved in detail and can be used to check your own work. 1 Lesson WWhat You Will Learnhat You Will Learn Use the formula for circumference. North Carolina Testing Program EOG Grade 6 Math Sample Items Goal 2 Page 3 Published April 2008. How far does the tire go in ONE revolution? (Hint: use circumference formula) How far does the tire go in 10 revolutions? Given the CIRCUMFERENCE, work backwards using the formula to find the diameter and radius. There are two steps to solving math word problems: Translate the wording into a numeric equation that combines smaller "expressions" Solve the equation! Suggestions: Read the problem entirely Get a feel for the whole problem; List information and the variables you identify. com, a math practice program for schools and individual families. 5 ft² 10 ft. Area and Perimeter of Rectangles. Terminology and properties of circles in math | circle formulas like Area and circumference of the circle, Arc and sector of a circle, Segment of a circle. what is the circumference and area ? math word problems? How to. Quiz & Worksheet - Circles & Word Problems Quiz; You will receive your score and answers at the end. (Hint: word problems are units Identify what you are given and determine the unit and the time. %$ % cases: $7. Free trial available at KutaSoftware. Finding the Perimeter and Circumference Practice Problems Now that you have added to your knowledge, it is time to practice what you have learned. Practice finding the radius and diameter of a circle using both vocabulary and visuals. 1 – Center, Radius, and Circumference LT11. Spiral Review: Use the area or circumference formulas for circles to answer the word problems. Each free area worksheets contains the formula to calculate the area of that specific shape, provides several examples so that you'll know how to get started, and supplies an accurate answer key so that you can check your work. Click here for the Circumference worksheet answer key. We hope that you find exactly what you need for your home or classroom!. Write the formula that you will use (e. ) time Write the ordered pair (time, units). 1) Radius = Diameter = Area = Circumference = 2) Radius = Diameter = Area = Circumference = 3) Radius = Diameter = Area = Circumference = 4) Radius = Diameter = Area = Circumference = 5) Radius = Diameter = Area = Circumference = 6) Radius = Diameter. superteacherworksheets. Course: 7th Grade Math DETAIL LESSON PLAN Friday, February 10 / Monday, February 13 Student Objective (Obj. Volume & Surface Area. The area and circumference of a circle need to be measured while solving complicated problems and worksheets involving Trigonometry and advanced Geometry. Find the area of the computer. Also solutions and explanations are included. Super Teacher Worksheets - www. (Remember for right triangles to use a2 + b2 = c2) 1. Perimeter Circumference Area. Some of the worksheets for this concept are 11 3 circles and circumference, 11 circumference and area of circles, , Circles date period, , Circle, Circle, Solving perimeter and area word problems perimeter is the. Find the area of the circle. What is the area of table? a. Example 5: Calculate the lateral area and surface area. This is a comprehensive collection of free printable math worksheets for grade 5, organized by topics such as addition, subtraction, algebraic thinking, place value, multiplication, division, prime factorization, decimals, fractions, measurement, coordinate grid, and geometry. gave review notes (worksheets) on solving one-step equations using law of opposites go over quiz, review sheets 5. The area is given. Step 3 Students follow the directions on the Measuring Area and Volume worksheet to calculate surface area and volume of varied cylinders and boxes created using the scissors and 8. 1 in² 22) area = 78. The first person to use the word γεωγραφία was Eratosthenes (276–194 BC). 17) area = 4 π in² 4 in 18) area = 49 π yd² 14 yd 19) circumference = 162 π yd 162 yd 20) circumference = 30 π yd 30 yd-2-Create your own worksheets like this one with Infinite Pre-Algebra. Circumference and Area of Circles (A) - area and circumference of a circle worksheet answers | area and circumference of a circle worksheet answers Gallery for 9 Facts About Area And Circumference Of A Circle Worksheet Answers That Will Blow Your Mind | Area And Circumference Of A Circle Worksheet Answers. Geometric figures lie in a plane. Find the surface area, to the nearest tenth of a square foot, of this container assuming it has a closed top and bottom.