C is the midpoint of the line joining two points A,B on the ground. A tower at C slightly leans towards B. If the angles of elevation of the top of the tower from A and B are `30^@, 60^@` respectvely, the angle made by thetower with the horizontal is

Two points A and B are on the ground and on opposite sides of a tower. A is closer to the foot of tower by 42 m than B. If the angles of elevation ofthe top of the tower, as observed from A and B are 60∘ and 45∘, respectively. then the height of the tower is closest to:

The angle of elevation of the top of a tower at a point on the ground is 30o .What will be the angle of elevation,if the height of the tower is tripled?

The angle of elevation of the top of a vertical tower standing on a horizontal plane is observed to be 45^(@) from a point A on the plane. Let B be the point 30 m vertically above the point A. If the angle of elevation of the top of the tower from B be 30^(@) , then the distance then the distance (in m) of the foot of the tower from the point A is

The angle of elevation of the top of a tower at a point on the ground is 30^@ . What will be the angle of elevation, if the height of the tower is tripled?

A tower leans towards North. At two points due south of it and at distances a and b metres respectively from its foot, the angles of elevation of the top of the tower are found to be a and B. If is the angle of inclination of the tower to the horizontal, then cot O is equal to :

A tower stands at the centre of a circular park . A and B are two points on the boundary of the park such that AB(=a) subtends an angle of 60^@ at the foot of the tower , and the angle of elevation of the top of the tower from A or B is 30^@ . The height of the tower is

A tower stands at the centre of a circular park . A and B are two points on the boundary of the park such that AB(=a) subtends an angle of 60^@ at the foot of the tower , and the angle of elevation of the top of the tower from A or B is 30^@ . The height of the tower is

The angles of elevation of the tops of two vertical towers as seen from the middle point of the line joining the foot of the towers are 60^@,30^@ respectively. The ratio of the heights of the towers is