ircles est eview 1 1. rc 2. rea 3. entral ngle 4. hord 5. ircumference 6. Diameter 7. Inscribed 8. Inscribed ngle 9. Intercepted rc 10. Pi 11. adius 12. ector 13. emicircle 14. angent 15. πr 2 16. 2πr Name Grp Pd Date. segment with endpoints that are on the circle.. chord that intersects the center of a circle.. line that intersects a circle at exactly one point only. D. piece of the circumference of a circle. E. part of the area of a circle cut out by a central angle. F. he ratio of a circle circumference to its diameter. G. n arc whose endpoints are on a diameter. H. segment with one endpoint at the center of the circle and the other endpoint on the circle. I. he formula for the area of a circle. J. n angle whose vertex is at the center of the circle. K. Drawn inside of shape so the vertices are touching that shape. L. he piece of the circumference cut out by the sides of an angle. M. he space inside a shape, measured in square units. N. he formula for the circumference of a circle. O. n angle whose vertex is on the circle. P. he distance around a circle. DIEION: how all of your work. If needed, round answers to 1 decimal place. ircle final answers. 17. Find measures Y 86 W 77 X Length of X adius m YXW m X Diameter mw myx mx 33 49 84 19. he pizza to the left has been cut with 3 diameters. Find all the missing angle and arc measures. 20. he pizza to the left has been cut with 3 diameters. Find all the missing angle and arc measures. 41 18. Find measures 84 D 32 E Length of E adius E m ED Diameter E md m 21. If m = 48 and m = 32, then what is the m? md? m E m D bit.ly/mrz1718unit9review
8 cm 22. If m G = 31 and m F = 45, then what is the H G K x F J m H? mfj? m HKF? value of x? 26. W is an inscribed quadrilateral. What is the m? What is the m? What is the mw? 109 86 W 23. If mq = 102 and m = 31, then what is the x m Q? mp? m PQ? 27. FGHK is an inscribed quadrilateral. What is the m K? What is the m H? What is the mgfk? G 101 H 71 F K value of x? L 57 M 28. If KL is a diameter, label the right angle. What is the mlm? 24. If is a diameter, then what is the m? m? D 62 56 K If LM is 7 cm, then what is the diameter of? m? 25. If is a diameter, then what is the m? m? 31 52 W 29. If is a diameter, label the right angle. What is the m? If is 8 cm, then what is the length of? 45 mw?
ircles est eview 2 Name Grp Pd Date 30. ML and LN are tangent to circle P. Label the right angles. M What is the m MPN? O P 31 L What is the mmon? N 34. he radius of is 5 ft, is 13 ft, and is 12 ft. Is tangent to? Prove whether it is or is not. Write your final answer and proof as a complete sentence. 31. and are tangent to circle. Label the right angles. What is the m? What is the mw? 122 W 32. If is tangent to, label the right angle. What is the length of? 35. Is tangent to? Prove whether it is or is not, and write your final answer as a complete sentence. 36. What is the circumference of this tire rim? 33. is tangent to. Label the right angle. If the radius is 5 cm, what is the length of? 37. What is the area of this tire rim? his gear has a diameter of 30 in. 38. What is the circumference of the gear? 39. What is the area of the gear? bit.ly/mrz1718unit9review
40. pizza with a diameter of 14 inches is divided into 16 equal slices. What is the arc length one slice? 44. he minute hand on the clock is pointing at 10. How many degrees will it travel if it moves clockwise from 10 to 5? What is the area of one slice? If you eat 7 pieces, how many square inches did you eat? 41. cake with a radius of 8 inches is cut into 6 equal pieces (sectors). What is the arc length one piece? How many degrees will it travel if it moves clockwise from 10 to 7? If the minute hand on the clock above is 11 inches long, how far will the end of the hand travel when it moves from the 10 to the 5? If the minute hand on the clock above is 33 cm long, how far will the end of the hand travel when it moves 25 minutes? What is the area of one piece? If you eat 2 pieces, how many square inches did you eat? 45. windshield wiper is 60 cm long. One sweep covers an angle of 114. How far does the end of the wiper blade travel with one sweep? 114 42. he tire has a radius of 37 cm. What is the area of the windshield covered by the wiper? How far will the tire travel with a 40 rotation? How far will the tire travel with an 85 rotation? 46. he beam from a light house reaches a distance of 13 miles and spreads to an angle of 43 degrees. What is the area covered by the lighthouse beam? Write your final answer in a complete sentence. 43. he speedometer is designed using a semicircle. he length of the needle is 6 cm. How far will the end of the needle travel if your speed changes from 30 MPH to 65 MPH? 47. he front headlights of a submarine reach a distance of 62 meters, and spreads to an angle of 31. What is the area of the beam? Write your final answer in a complete sentence.
Unit 9 est eview 3 Name Period Date 48. t the local Pizza Palace, you have a choice of the following two slices of pizza. lice lice 49. If the circumference of this gear is 42 cm, what is the radius? 48 10 inch radius 62 8 inch radius $1.90 $1.75 alculate the area of each slice. hen compare the cost per square inch and determine which slice is the better value. Write your final decision in complete sentences, and be sure to include your evidence in the answer. 50. If the circumference of this tire is 140 in, what is the radius? rea of lice : ost per square inch lice : 51. If the area of this cracker is 11π cm 2, what is the radius? rea of lice : ost per square inch lice : Final nswer 52. If the area of this pizza is 380π in 2, what is the radius? bit.ly/mrz1718unit9review
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