Chapter 11.2, Problem 36E

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6th Edition

Daniel C. Alexander + 1 other

ISBN: 9781285195698

Textbook Problem

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*In Exercise 29 to 37, angle measures should be given to the nearest degree; distances should be given to the nearest tenth of a unit.*

In searching for survivors of a boating accident, a helicopter moves horizontally across the ocean at an altitude of 200 ft above the water. If a man clinging to a life raft is seen through an angle of depression of

To determine

**To find:**

To find distance from the helicopter to the man in the water by using the following condition,

“In searching for survivors of a boating accident, a helicopter moves horizontally across the ocean at an altitude of 200 ft. above the water. If a man clinging to a life raft is seen through an angle of depression of

Explanation

A man clinging to a life raft is seen through an angle of depression of

Let *x* be the distance from the helicopter to the man in the water.

To find the distance from the helicopter to the man in the water.

Consider the following figure,

General formula for cosine ratio and sin ratio is given below,

From the given figure the value *x* is the hypotenuse value since it is opposite to right angle

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