A boy standing on a horizontal plane finds a bird flying at a distance of 100 m from him at an elevation of `30^@`. A girl standing on the roof of 20 metre high building, finds the angle of elevation of the same bird to be `45^@`. Both the boy and the girl are on opposite sides of the bird. Find the distance of bird from the girl.

A boy standing on a horizontal plane find that angle of elevation of a bird 100 meter away from him at 30^(@) . A girl standing at a house 20 meter above the plane find that elevation of the bird is 45^(@) . If boy and girl are in the opposite direction find the distance between the bird and the girl.

A boy is standing on the ground and flying a kite with 100m of string at an elevation of 30o . Another boy is standing on the roof of a 10 m high building and is flying his kite at an elevation of 45o . Both the boys are on opposite sides of both the kites. Find the length of the string that the second boy must have so that the two kites meet.

From the top of a 10 m high building, the angle of elevation of the top of a tower is 60^@ and the angle of depression of its foot is 45^@ . Find the height of the tower

A person standing at a distance of 90 m from a church observes the angle of elevation of its top to be 45^(@) . Find the height of the chruch .

A boy is standing on the ground and flying a kite with 150 m of string at an elevation of 30^(@) . Anotheer boy is tanding on the root of a 25 m high buildig and flying a kite at an elevation of 45^(@) . Find the length of string required by the second boy so that the two kites just meet if both the boys are on opposite sides of the kites.

A lamp post stands on a horizontal plane. From a point situated at a distance 150 m from its foot, the angle of elevation of the top is 30^(@) . What is the height of the lamp post?

A lamp post stands on a horizontal plane. From a point situated at a distance 150 m from its foot, the angle of elevation of the top is 30^(@). What is the height of the lamp post?

The angle of elevation of the top a building at a distance of 100 m from its foot on a horizontal plane is found to be 60^@ . Find the height of the building.

A 1.5m tall boy is standing at some distance from a 30m tall building.The angle of elevation from his eyes to the top of the building increases from 30 to 60o as he walks towards the building.Find the distance he walked towards the building.