Chapter 13: Q. 9 (page 712)
Rewrite each degree measure in radians and each radian measure in degrees if the angle is .
Short Answer
The degree measure in radians of angle is .
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Chapter 13: Q. 9 (page 712)
Rewrite each degree measure in radians and each radian measure in degrees if the angle is .
The degree measure in radians of angle is .
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A geologist measured a angle of elevation to the top of a mountain. After moving 0.5 km farther away the angle of elevation was . How high is the top of the mountain?

Rewrite each degree measure in radians and each radian measure in degrees if the angle is .
Rewrite each degree measure in radians and each radian measure in degrees if the angle is.
Write an equation involving that can be used to find x. Then solve the equation. Round measures of side to the nearest tenth and measures of angles to the nearest degrees.

In a sightseeing boat near the base of the Horseshoe Falls at Niagara Falls, a passenger estimates the angle of elevation to the top of the falls to be 30°. If the Horseshoe Falls are 173 feet high, what is the distance from the boat to the base of the falls.
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