A balloon of radius r subtends an angle` alpha` at the eyes of an observer and the center of balloon from the eye is `beta` . Find the height of the center of the balloon from the eye of observer .

A round balloon of radius 'r' subtends an angle alpha at the eye of the observer, while the angle of elevation of its centre is beta . Find the height of the centre of balloon.

A sperical balloon of radius r subtends an angle alpha at the eye of an observer, while the angle of elevation of its centre is beta . The height of the centre of the ballon is

A spherical balloon of radius r subtends an angle theta at the eye of an observer. If the angle of elevation of its centre is phi , find the height of the centre of the balloon.

A round balloon of radius R subtend an angle 2alpha at the eye of the observer, while the angle of elevation of it's centre is 2beta , then the height of the centre of balloon is

A round balloon of radius r subtends an angle alpha at the eye of the observer while the angle of elevation of its centre is beta Prove that the height of the centre of the balloon is r sin beta cos ec[(alpha)/(2)]

A round balloon of radius r subtends an angle alpha at the eye of the observer while the angle of elevation of its centre is beta. Prove that the height of the centre of the balloon is r sin(beta)cos ec(alpha)/(2)

A round balloon of radius r subtends an angle a at the eye of the observer while the angle of elevation of its centre is p. Prove that the height of the centre of the balloon B is r sin beta cosec (alpha)/(2) .