SOLUTION: From an airplane at an altitude of 1200 m, the angle of depression to a building on the ground measures 28°. Find the distance from the plane to the building.
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Question 1192563: From an airplane at an altitude of 1200 m, the angle of depression to a building on the ground measures 28°. Find the distance from the plane to the building.
Make a sketch.
In the sketch, find a right angled triangle.
The triangle' leg is 1200 m (vertical). It is the height of the plane, H.
The opposite angle of the triangle is 28°.
They want you find the hypotenuse c.
sin(28°) = = .
From this equation, c = 1200*sin(28°).
Use your calculator to get the answer.
