Rajender observes a person standing on the ground from a helicopter at an angle of depression `45^(@)`. If the helicopter flies at a height of 500 meters from the ground, what is the distance of the person from Rajender?

The gravitational potential energy at the height of h from the ground is

Rinky observes a flower on the ground from the balcony of the first floor of a building at an angle of depression beta^(@) . The height of the first floor of the building is x meters. Draw the diagram for this data.

A boy observed the top of an electric pole at an angle of elevation of 60^(@) when the observation point is 8 meters away from the foot of the pole. Find the height of the pole.

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

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

The top of a clock tower is observed at angle of elevation of alpha^(@) and the feet of the tower at is the distance of d meters from the observer. Draw the diagram for this data.

From a point on the ground, the top of a tree is seen to have an angle of elevation 60^(@) . The distance between the tree and a point is 50 m. Calculate the height of the tree?

A person standing on the bank of a river observes that the angle of elevation of top of a tree on the opposite bank of the river is 60^@ and when the retires 40 metres away from the tree the angle of elevation becomes 30^@ the breadth of the river is

A flagpole stands on a building and an observer on a level ground is 300 feet from the base of the builing . The angle of elevation of the bottion of the flagpole is 30^@ and the height of the flagpole is 50 feet if theta is the angle of elevation of hte top of the flagpole , then tan theta is equal to