When the top of a chimney of a factory is seen from a point on the roof of the three storied buildin
Channel: Doubtnut
Date: 2020-05-10

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.