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**Homework Answers P. 570 P. 577 27. 20 2. 30.25 28. 6 4. /9**

27. 20 28. 6 4. /9 6. approx 22 30. 14 31. 32. 58 33. 25 34. 7/2 or 3.5 35. 8 36. 27 37. 33 38. 23 /2 or 11.5 39. 5/4 or 1.25 55. 50 /3

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Areas of Sectors Math 2 - Lesson 82 Mr. Lopez

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Areas of Sectors The area of a sector is the product of the ratio measure of the arc to 360 and the area of the circle. Area of sector AOB = A B O

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**Examples Find the area of sector DAN. Leave your answer in terms .**

A circle has a diameter of 20 cm. What is the area of a sector bounded by a 208 major arc? Round your answer to the nearest tenth. N D 120 5 A

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More Examples Find the area of the shaded segment rounded to the nearest tenth. A O 6 B

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**Homework Answers 7. 40.5 yrd2 8. 64 9. 10. 12 in2 11. 12 ft2**

12. 56 cm2 cm2 m2 cm2 23. (54 3) cm2

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