A chimney is such that on walking towards it 50m in a horizontal line through its base the angular elevation of its top changes from 30 degree to 45 degree . the height of the chimney is

It is found that on walking x metres towards a chimney in a horizontal line through its base, the elevation of its top changes from 30o to 60o . The height of the chimney is 3sqrt(2)x (b) 2sqrt(3)x (c) (sqrt(3))/2x (d) 2/(sqrt(3))x

Find the height of a building, when it is found that on walking towards it 40 m in a horizontal line through its base the angular elevation of its top changes from 30^(@) t o 45^(@)

Find the height of a tree it is found that on walking away from is 20 m, in a horizontal line through is base , the elevation of its top changes from 60^(@) t o 30^(@)

A man observes the angle of elevation of the top of a building to be 30^(@) . He walks towards it in a horizontal line through its base. On covering 60 m the angle of elevation changes to 60^(@) . Find the height of the building correct to the nearest metre.

A man observes the angle of elevation of the top of the tower to be 45^(@) . He walks towards it in a horizontal line through its base. On covering 20 m the angle of elevation change to 60^(@) . Find the height of the tower correct to 2 significant figures.

An observer 1.5 m tall is 28.5 m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 45o .What is the height of the chimney?

An observer 1.5 m tall is 28.5 m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 45^@ .What is the height of the chimney?

From a point on the ground, the angle of elevation of the top of a vertical tower is found to be such that its tangent is (3)/(5) . On walking 50 m towards the tower, the tangent of the new angle of elevation of the top of the tower is found to be (4)/(5) . Find the height of the tower.

An observer finds that the elevation of the top of a tower is 22.5^@ and after walking100 m towards the foot of the tower, he finds that the elevation of the top has increased to 67.5^@. The height of the tower in metres is:

A boy, 1.6 m tall, is 20 m away from a tower and observes the angle of elevation of the top of the tower to be 45^(@) then find the height of tower