a window in a building is at a height of 10m from the ground. the angle of depression of a point p on the ground from the window is 30.
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tan30 = 10/x
1/√3 = 10/x
x = 10√3
x = 10×1.732
17.32
1/√3 = 10/x
x = 10√3
x = 10×1.732
17.32
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