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9 August, 07:48

From an airplane at an altitude of 1200, the angle of depression to a building on the ground measure 28 degrees find the distance from the plane to the building?

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  1. 9 August, 09:23
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    Sinα=h/d

    d=h/sinα we are told h=1200ft and α=28°

    d=1200/sin28° ft

    d≈2556 ft (to nearest foot, I assumed feet as you didn't give units ...)
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