Math 115 Recitation 11

# Math 115 Recitation 11 - A man is lying on the beach flying...

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PRECALCULUS – Recitation 11 Practice Problems: 1. Convert the following radian measures to degree measures: a. b. c. 2. Convert the following degree measures to radian measures: a. b. c. 3. Find the length of the arc that subtends a central angle of in a circle of radius 10 m. 4. A circular arc of 3 ft subtends a central angle of . Find the length of the radius of the circle accurate to two decimal places. 5. The area of a circle is 72 cm 2 . Find the area of a sector of this circle which subtends a central angle of radians. 6. If , find the other trigonometric ratios of . 7.
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Unformatted text preview: A man is lying on the beach flying a kite. He holds the end of the kite string at ground level and estimates the angle of elevation of the kite to be. If the string is 450 ft long, how high is the kite above the ground? 8. To estimate the height of a mountain, above a level plain, the angle of elevation to the top of the mountain is measured to be . One thousand feet closer to the mountain, the angle of elevation to the top of the mountain is measured to be . Approximately how high is the mountain? (Round your answer to the nearest foot.)...
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## This note was uploaded on 12/13/2011 for the course MATH 115 taught by Professor Plotkin during the Spring '08 term at Rutgers.

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