9.The angle of elevation of the top of a building from the foot of the tower is 30° and theangle of elevation of the top of the tower from the foot of the building is 60°. If the toweris 50 m high, find the height of the building.9.310. Two poles of equal heights are standing opposite each other on either side of the roadIn twhich is 80 m wide. From a point between them on the road, the angles of elevation dfthe top of the poles are 60° and 30°, respectively. Find the height of the poles and thedistances of the point from the poles.

9.The angle of elevation of the top of a building from the foot of the

1.	9.The angle of elevation of the top of a building from the foot of the tower is 30° and theangle of elevation of the top of the tower from the foot of the building is 60°. If the toweris 50 m high, find the height of the building.9.310. Two poles of equal heights are standing opposite each other on either side of the roadIn twhich is 80 m wide. From a point between them on the road, the angles of elevation dfthe top of the poles are 60° and 30°, respectively. Find the height of the poles and thedistances of the point from the poles.
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