From a window 50 m above the level ground, a building which is 100 m high and at a distance of 100 m from the window is observed.
i. Find the angle of elevation from the window to the top of the building.
ii. Find the angle of depression from the window to the base of the building.

Question

From a window 50 m above the level ground, a building which is 100 m high and at a distance of 100 m from the window is observed.
i. Find the angle of elevation from the window to the top of the building.
ii. Find the angle of depression from the window to the base of the building.

anonymous · Answer

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Angle e = Angle d.

tan d = 50 / 100
tan d = 0.5
d = 26.565 = e