The angle of elevation of the top of a building from the foot of the tower is 30° and the angle of elevation of the top of the tower from the foot of the building is 60°. If the tower is 50 m high, find the height of the building
Let us take DC = 50 m,
∠ACB = 30°
And,
∠ DBC = 60°;
AB= ?
In Δ DCB;
In Δ ACB
AB= 16
m
21