Determine the height of a mountain if the elevation of its top at an unknown distance from the base is `30o` and at a distance 10km further off from the mountain, along the same line, the angle of elevation is `15o` . (Use `tan15o=0. 27` )

Determine the height of a mountain if the elevation of its top at an unknown distance from base is 25^(@)10' and at a distance of 5km further off from the mountains,along the same line the angle of elevation is 15^(@)20' Give the answer in km correct to 2 decimals.

At a point 15 m away from the base of a 15 m high house, the angle of elevation of the top is

At a point 15 m away from the base of a 15 m high house, the angle of elevation of the top is

The angle of elevation of the top of an unfinished tower at a distance of 120 m from its base is 30^(@) . How much higher must the tower be raised so that the angle of elevation of its top at the same point may be 60^(@) ?

The angle of elevation of the top of an unfinished tower at a distance of 75m from its base is 30^(@). How much higher must the tower be raised so that the angle of elevation of its top at the same point may be 60^(@).

A person is standing at a distance of 80m from the church looking at its top. The angle of elevation is 45^(@) . The height of the church is.

The angle of elevation of the top of a tower at a horizontal distance equal to the height of the tower from the base of the tower is

The angle of elevation of a tower from a distance 50 M.From its foot is 30^@ . What is the height of the tower ?