As seen from the deck of a ship the angle of elevations of the top and bottom of light house situated on the seaside are `60^@` and `30^@`. If the lgiht house is located 8 metre above the sea level and the deck of the ship[ is at a height of 3 metre from sea level, then what is the height of the light house?

From a light house the angles of depression of two ships on opposite sides of the light house are observed to be 30^@ and 45^@ . If the height of the light house is h metres, the distance between the ships is____

From the top of a cliff, 150 metres high, the angles of depression of the top and bottom of a pillar are found to be 30^@ and 60^@ respectively, find the height of the pillar.

The angles of elevation of the top of a lighthouse from 3 boats A, B and C in a straight line of same side ofthe light house are a, 2a, 3a respectively. If the distance between the boats A and B and the boats B and Care x and y respectively find the height of the light house?

The bottom of a light house and bottom of the mast of two ships are on the same straight line and the angles of depression from the light house at the bottom of mast of two ships are 60^(@) and 30^(@) respectively. If the distance of the points at the bottom of the light house and the bottom of the mast of first ship is 150 metres, calculate how far will the mast of the other ship from the light house be and what will the height of light house be.

From the tower 60 m high angles of depression of the top and bottom of a house are alphan and beta respectively. If the height of the house be h. then prove that h = (60sin(beta - alpha))/(cos alpha sinbeta)

From a point on the roof of five storied building the angle of elevation of the top of a monument and that of depression of the foot of the monument are 60^@ and 30^@ respectively. If the height of the building is 16 metres, then calculate the height of the monument and the distance of the building from the monument.

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?

If the angle of elevation of a kite is 60^@ and the length of the string is 80sqrt3 metre, then the height of the kite from the ground is

From a point on the roof of five-storied building the angle of elevation of the top of a monument and that of angle of depression of the foot of the monument are 60^(@) and 30^(@) respectively. If the height of the building is 16 metres, calculate the height of the monument and the distance of the building from the monument.