Two men on either side of a temple of 30 meter height observe its top at the angles of elevation `30^(@)` and `60^(@)` respectively. Find the distance between the two men.

An aeroplane at an altitude of 1800m finds that two boats are selling towards it in the same direction. The angles of depressionn of the boats as obversed from the aeroplane are 60^(@) and 30^(@) respectively. Find the distance between the two boats. (sqrt(3)=1.732) .

Two poles of equal heights are standing opposite to each other on either side of the road, which is 120 feet wide. From a point between them on the road, the angles of elevation of the top of the poles are 60^(@) and 30^(@) respectively. Find the height of the poles and the distances of the point from the poles.

Two ships are sailing in the sea on either side of the lighthouse. The angles of depression of two ships as observed from the top of the lighthouse are 60^(@)and45^(@) respectively. If the distance between the ships is 200((sqrt(3+1))/(sqrt(3))) metres, find the height of the lighthouse.

The angles of elevation and depression of the top and bottom of a lamp post from the top of a 66m high apartment are 60^(@) and 30^(@) respectively, find The distance between the lamp post and the apartment (sqrt(3)=1.773) .