A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at an angle of depression of `30^@`, which is approaching the foot of the tower with a uniform speed. After covering a distance of 50 m, the angle of derpession of the car becomes `60^@`.find the height of the tower.`(Use sqrt 3 = 1.73)`.

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at an angle of depression of 30^@ , which is approaching the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60^@. Find the time taken by the car to reach the foot of the tower from this point.

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at angle of depression of 30^0, which is approaching to the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60^0dot Find the further time taken by the can to reach the foot of the tower.

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at angle of depression of 30o , which is approaching to the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60o . Find the further time taken by the car to reach the foot of the tower.

The angle of elevation of a tower at a point is 45^(@) . After going 40 m towards the foot of the tower, the angle of elevation of the tower becomes 60^(@) . Find the height of the tower.

From 40 m away from the foot of a tower , the angle of elevation of the top of the tower is 60^(@) .What is the height of the tower ?

From the top of a 7m high building,the angle of elevation of the top of a tower is 60 and the angle of depression of the foot of the tower is 30. Find the height of the tower.

From the top of a cliff 300 metres high, the top of a tower was observed at an angle of depression 30^@ and from the foot of the tower the top of the cliff was observed at an angle of elevation 45^@ , The height of the tower is

At a point 20 m away from the foot of a tower, the angle of elevation of the top of the tower is 30^@ The height of the tower is