Answered

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A helicopter hovers 550 feet above a small island. The figure shows that the angle of depression from the helicopter to point p is 43°. How far off the coast, to the nearest foot, is the island? (Round the answer to the nearest whole number.)

A Helicopter Hovers 550 Feet Above A Small Island The Figure Shows That The Angle Of Depression From The Helicopter To Point P Is 43 How Far Off The Coast To Th class=

Sagot :

The angle of depression and angle P are alternate interior angles, then:

∠P = 43°

By definition:

tan(angle) = opposite/adjacent

In this case,

tan(43°) = 550/d

d = 550/tan(43°)

d = 590 ft

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