The angle of elevation of top of a tree is `30^(@)`. On moving 20m nearer, the angle of elevation is `60^(@)`. The height of the tree is

On the level ground, the angle of elevation of a tower is 30^(@) . On moving 20 m nearer, the angle of elevation is 60^(@) . The height of the tower is

On the level ground, the angle of elevation of a tower is 30^(@) . On moving 20 m nearer, the angle of elevation is 60^(@) . The height of the tower is

From a point on the level ground, the angle of elevation of the top of a pole is 30^@ . On moving 20 metres nearer, the angle of elevation is 45^@ . Then the height of the pole, in metres , is

From a point on the level ground , the angel of elevation of the top of a pole is 30^(@) . On moving 20 meters nearer, the angle of elevation is 45^(@) . Then the height of the pole, in meters, is

The angle of elevation of the top of a tower at a point G on the ground is 30^(@) . On walking 20 m towards the tower the angle of elevation becomes 60^(@) . The height of the tower is equal to :

Looking from the top of a 20 m high building, the angle of elevation of the top of a tower is 60^(@) and the angle of depression of its bottom is 30^(@) . What is the height of the tower?

The angle of elevation of the top of tree from a point at a distance of 250 m from its base is 60^(@) . The height of the tree is ____.

A tree stands vertically on the slant of the hills From a point A on the ground 35 meters. Down the hill from the base of the tree , the angle of elevation of the top of the tree is 60 ^(@) . If the angle of elevation of the foot of the tree A is 15 ^(@) , then the height of the tree.

From a point on the horizontal line through the foot of a chimney the angle of elevation of the top of the chimney is 30^@ . and the angle of elevation is 60^@ at a point on the same straight line 50 metres nearer to the chimney. What is the height of the chimney?