A tree stands vertically on a hill side which makes an angle of
`15^@` with the horizontal. From a point on the ground 35m down the hill from the base of the tree, the angle of elevation of the top of the tree is
`60^@` . Find the height of the tree.

A boy viewed the top of a tree at anangle of elevation 30^@ . He moved 10 m towards the tree and saw the top of the tree ant the angle 60^@ Find the height of the tree.

A flagpole stands on a building of height 450 ft and an observer on a level ground is 300 ft from the base of the building .The angle of elevation of the bottom of the flagpole is 30^(@) and the height of the flagpole is 50 ft . If theta is the angle of elevation of the top of the flagpole , then tan theta is equal to

A tree breaks due to a strom and the broken part bends so that the top of the tree touches the ground making an angle 30 with it. The distance between the foot of the tree to the point where the top touches the ground is 8m. Find the height of the tree.

A boy standing at the edge of a canal sees the top of a tree on the other edge at an elevation of 60^o . Stepping 12 metres back, he sees it at an elevation of 30^o . Find the height of the tree.

From the top of a tower, the angle of depression of a point on the ground is 60^@ . If the distance of this point from the tower is 1/(sqrt3+1) m then the height of the tower is