Trigonometrymedium · Past Paper
The angle of elevation of the top of a building from the foot of a tower is 30° and from the foot of the building to the top of the tower is 60°. If the tower is 50 m high, find building height.
A50/3 m
B50√3 m
C25 m
D100/3 m
✓ Correct Answer: A — 50/3 m
Distance d = 50/tan 60 = 50/√3. Building height = d * tan 30 = (50/√3) * (1/√3) = 50/3 m.
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