When the top of a chimney of a factory is seen from a point on the roof of the three storied building of `9sqrt(3)`metre height, the angle of elevation is `30^(@)`. If the distance between the factory and chimney is 30 metres, calculate the height of the chimney.

If the angle of elevation of the top of monument when observed from a point on the roof of a five-stories building of 18 metre height is 45^@ and the angle depression of the foot of the monumenbt. When observed from the same pointy is 60^@ . Calculate the height of the monument. [sqrt3= 1.732]

If the angle of elevation of the top and Monument when observed from a point on the roof of a building of 16 metre height is 60^@ and the angle of depression of the foot of the Monument, when observed from the same point is 30^@ , calculate the height of the Monument and the distance from Monument to the building.

If the angle of elevation of the top of a Monument when observed form a point on the roof of a five storied building of 18 metre height is 45^@ and the angle of depression of the foot of the Monument, when observed from the same point 60^@ . What is the height of the MOnument?

A house of 15 metres hegiht, stands on one side of a park and from a point on the roof of the house of the angle of depression of the foot of the chimney of brick kilm of the other side is 30^@ and the angle of elevation of the top of the chimney of brick kiln is 60^@ . Calculate the height of the chimney

Form a point on the same plane along the horizontal line passes through the foot of a chimney, the angle of elevation of the top of the chimney is 30^(@) and the angle of elevation of the top of the chimney is 60^(@) at a point on the same straight line proceeding 50 metres nearer to the chimney. Calculate the height of the chimney.

The length of the shadow of a tower is 9 metres when the sun's angle of elevation is 30^(@) . Calculate the height of the tower.

The angle of elevation of the sun when the shadow of a pole of height 9 metres is 3sqrt(3) metres long is

A house of 15 metres height, stands on one side of a park and from a point on the roof of the house the angle of depression of the foor of chimney of brick kiln of the other side is 30^(@) and the angle of elelvation of the top of the chimney of brick kiln is 60^(@) . Find the height of the chimney and the distance between the brick kiln and the house.

The length of the flag at the roof of three-storied building is 3.3 metres. From any point of road, the angles of elevation of the top and foot of the flagpost are 50^(@) and 45^(@) . Calculate the height of three-storied building [ Let tan 50^(@) =1.192]

If the angle of elevation of the top of a tower at a distance 500 metres from its foot is 30^@ then the height of the tower is