Radius and diameter answer key

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      Chapter 9 – CirclesAnswer Key. CK-12 Basic Geometry Concepts. 16. 9.1Parts of Circles. Answers. 1.diameter. 2.secant. 3.chord. 4.point of tangency. 5.common external tangent. 6.common internal tangent. 7.the center. 8.radius. 9.The diameter is the longest chord in any circle. 10.ʘ ... 17.If the radius of the circle is 5, then the length of ...

    • [DOC File]TEKS Lesson Plan/Unit Plan

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      Radius . A radius is a line segment with one endpoint at the center of a circle and the other endpoint on the circle. Diameter. A diameter is a line segment through the center of a circle, with endpoints on the circle. Circumference. Circumference is the distance around a circle. I. Sequence of Activities (Instructional Strategies) A. Focus ...

    • [DOC File]The radius, diameter, circumference, and area of a circle

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      a) The circumference of a circle with a diameter of 15 cm. b) The radius of a circle with a diameter of 480 in. c) The circumference of a circle with a radius of 320 cm. d) The diameter of a circle with a radius of 522 ft. The radius, diameter, or circumference of a circle is given. Find the missing measures. Show your work

    • [DOC File]Geometry 2-B

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      between the radius and the diameter?_____ 2. If the . radius. is 5cm, then the . diameter. is _____ 3. If the . diameter. is 14cm, then the . radius. is _____ 4. If the . radius. is 3.5in, then the ... symbol or the( key. Find the EXACT and APRROXIMATE circumference of each circle. Your answers should have plain units! 11. 12.

    • [DOC File]Mr. Royle's Classes J.S.M.S. - Home

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      1. a) Mark the centre, a radius, and a diameter of the circle below. b) Measure the circumference of the circle. Explain how you found your answer. c) Measure the radius and diameter of the circle. 2. On each circle: a) Mark the centre, a radius, and a diameter. b) Estimate the lengths of the radius and diameter. c)

    • [DOCX File]Lesson 1 - Scottsbluff Public Schools

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      Draw and measure a radius and a diameter of the circle. Solution. Answers vary. Problem 2. ... Express your answer in terms of π. Solution. Problem 3 (from Unit 3, Lesson 8) The face of a clock has a circumference of 63 in. What is the area of the face of the clock? Solution. About 316 in2. Divide 63 by π and by 2 to determine the radius of ...

    • [DOCX File]Area, Perimeter and Circumference Review WS

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      Area, Perimeter and Circumference Review WS ANSWER KEY *Round answers to the nearest tenth. Fill in . each blank with the correct formula. 1.the area of a circle:A = . π r 2 2.the area of a triangle:A = . ½ bh 3.the area of a parallelogram:A = . bh 4.the circumference of a circle:C = . 2πr or . πd 9 cm

    • [DOC File]Area, Perimeter and Circumference Review WS

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      28. The radius of a tire is 1.2 feet. How far will you travel after ten complete rotations of the tire? 29. A bicycle tire rim has a diameter of 24.5 inches, and the tire is 2.25 inches thick. Find the circumference of the outside of the tire. 30. You ride a Ferris wheel that has a circumference of 108 feet. Estimate the diameter of the Ferris ...

    • [DOCX File]TPHS - Ms. Donna Lynn - Home

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      ANSWER KEY. Part I – Circumference and Radius. C=2πr . 1. If the radius of a circle is 4 cm, what is the circumference? C = 2πr = 2π(4) = 8 π = 25.13 cm. 2. If the radius of a circle is 8 cm, what is the circumference? ... If the area of a circle is 900 mm2, what is the diameter? What is the radius? A = π ...

    • Acquisition Lesson Planning Form

      Review – volume, surface area, diameter, radius. Math Support class use GO “What effect does changing the radius have on the surface area and volume of a sphere?” to accelerate before the task. The GO can be used as a quiz or homework after task for other classes.

    • [DOC File]Geometry

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      RADIUS CHORD DIAMETER SECANT TANGENT POINT OF TANGENCY Discovery: Draw the following pairs of circles. Determine if the tangents are. internal . or . external tangents. 1. non-intersecting circles with 4 common tangents. 2. non-intersecting circles with no common tangents. 3. 1 point of intersection with 1 common tangent. 4.

    • [DOC File]Unit 4: Circles and Area

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      a). Answer: You are given the radius of the circle, so to . find diameter, multiply the radius by two. 4 cm d = 2r d = 4 ×2 . d = 8 cm. b). Radius = 6 cm. Answer: d = 2r d = _____ d = _____ 2. Find radius. a). Answer: You are given the diameter of the circle, so to . 10 cm find the radius, you must divide by 2. r = 10 ÷ 2 r = 5 cm. b ...

    • [DOC File]OHIO STANDARD Geometry and Spatial Sense(B)Draw circles ...

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      Answer: Pi times the diameter. Resource: Heath Mathematics Connections, Level 6, Volume 1, pg. 192. Question: Radius. Answer: The distance from the center of a circle to a point on the circle. Resource: Heath Mathematics Connections, Level 6, Volume 1, pg. 188. Question: Diameter. Answer: The distance across a circle through it’s center.

    • [DOC File]Geometry 2-B

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      9. If the radius is 7 cm, then the diameter is _____ If the diameter is 18 m, then the radius is _____ 10. State the FORMULA for CIRCUMFERENCE of a circle: _____ EXACT: use the symbol – NOT 3.14 APPROX: use 3.14 – NOT the symbol or the key. Find the exact and approximate CIRCUMFERENCE of each circle. Your answers should have plain units. 11 ...

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