9.A boy 1.7m tall is standing on a horizontal ground, 50m away from a building. The angle of elevation of the top of the building from his eye is `60^(@)`.Calculate the height of the building.(Take `sqrt(3)=1.73` ).

An observer 1.5 m tall is 30 m away from a chimney. The angle of elevation of the top of the chimney from his eye is 60^(@) . Find the height of the chimney.

A man 2.5 m tall is 32.5 m away from a building. The angle of elevation of the top of the building from his eyes is 60^@ . What is the height of the building? Also, calculate the distance between the eye of man and top point of the building.

A man is standing at a distance of 500 m from a building. He notes that angle of elevation of the top of the building is 3.6^(@) . Find the height of the building. Neglect the height of the man and take pi = 3.14

An observer,1.6m tall,is 45 metres away from a tower.The angle of elevation from his eye to the top of the tower is 30^(@). Determine the height of the tower.[Take sqrt(3)=1.732]

An observer 1.5 m tall is 20sqrt(3) m away from a chimney. The angle of elevation from the top of the chimney from his eyes is 30° and from bottom is 45°. Find the height of the chimney.

From a point P on the ground the angle of elevation of the top of a 10 m tall building is 30^(@) . A flag is hoisted at the top of the building and the angle of elevation of the top of the flagstaff from P is 45^(@) . Find the length of the flagstaff . (Take sqrt(3)=1.732)

A 1.6 m tall observer is 45 metres away from a tower .The angle of elevation from his eye to the top of the tower is 30^(@) , then the height of the tower in metres is (Take sqrt(3)=1.732)

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.