A tower is `100sqrt(3)` metres high. Find the angle of elevation if its top from a point 100 metres away from its foot.

Find the angle of elevation of the sun when the shadow of a pole 'h' metres high is sqrt3h metres long.

An observer 1.5 metres tall is 20.5 m away from a tower 22 metres high. Determine the angle of elevation of the top of the tower from the eye of the observer.

A 20 m high vertical pole and a vertical tower are on the same level ground in such a way that the angle of elevation of the top of the tower, as seen from the foot of the pole, is 60^(@) and the angle of elevation of the top of the pole as seen from the foot of the tower is 30^(@) . Find : the height of the tower.

From the top of a 7m high building, the angle of elevation of the top of a cable tower is 60o and the angle of depression of its foot is 45o . Determine the height of the tower.

A 20 m high vertical pole and a vertical tower are on the same level ground in such a way that the angle of elevation of the top of the tower, as seen from the foot of the pole, is 60^(@) and the angle of elevation of the top of the pole as seen from the foot of the tower is 30^(@) . Find : the horizontal distance between the pole and the tower.

The height of a tower is 100 metres. When the angle of elevation of the sun changes from 30^o to 45^o , the shadow of the tower becomes x metres less. The value of x is :

A vertical tower is 20 m high. A man standing at some distance from the tower knows that the cosine of the angle of elevation of the top of the tower is 0.53. How far is he standing from the foot of the tower ?

A TV-tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60^(@) . From another point 20 m away from this point on the line joining this point to the foot of the tower, the angle of elevation of the top of tower is 30^(@) (see fig.) . FInd the height of the tower and the width of the canal.

A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60^@ . From another point 20 m away from this point on the line joining this point to the foot of the tower, the angle of elevation of the top of the tower is 30°. Find the height of the tower and the width of the canal.

A TV-tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60^(@) . From another point 20 m away from this point on the line joining this point to the foot of the tower, the angle of elevation of the top of tower is 30^(@) (see fig.) . FInd the height of the tower and the width of the canal.