The tops of two towers of height `x` and `y` , standing on level ground, subtend angles of `30^@` and `60^@` respectively at the centre of the line joining their feet, then find `x\ : y` .

The angles of elevation of the top of a tower at the top and the foot of a pole of height 10 m are 30^@and 60^@ respectively. The height of the tower is

If from the top of a tower, 60 meters high, the angles of depression of the top an floor of a house are 30^(@) and 60^(@) respectively, then the height (in meters) of the house is

The angle of elevation of the top of a tower from the top and bottom of a building of height 'a' are 30^@ and 45^@ respectively. If the tower and the building stand at the same level , the height of the tower is

The angle of elevation of the top of a tower from the top and bottom of a building of height 'a' are 30^@ and 45^@ respectively. If the tower and the building stand at the same level , the height of the tower is

A vertical tower PQ subtends the same anlgle of 30^@ at each of two points A and B ,60 m apart on the ground .If AB subtends an angle of 120^@ at p the foot of the tower ,then find the height of the tower .

If the lines of regreasion of y on x and x on y makes angle 30 ^(@) and 60^(@) respectively with positive direction of x - axis the correlation coefficient between x on y is

From the top of a cliff, the angle of depression of the top and bottom of a tower are observed to be 45^(@) and 60^(@) respectively. If the height of the tower is 20 m. Find : (i) the height of the cliff (ii) the distance between the cliff and the tower.

The shadow of a tower standing on a level ground is found to be 40m longer when Suns altitude is 30o than when it was 60o . Find the height of the tower.

The shadow of a tower standing on a level ground is found to be 40 m longer when the Suns altitude is 30^o than when it is 60^o . Find the height of the tower.

The persons are standing on the opposite sides of a tower. They observe the angles of elevation of the top of the tower to be 30^(@) and 38^(@) respectively. Find the distance between them, if the height of the tower is 50 m