A spherical baloon of radius 50 cm, subtends an angle of `60^(@)` at a man's eye when the evevatin of its centre is `45^(@).` Then the height of the centre of the balloon is

A spherical balloon of radius 50 cm, subtends an angle of 60^(@) at a man's eye when the elevation of its centre if 45^(@) . Then the height of the centre of the ballon is

A spherical balloon of radius 5 subtends an angle 60^(@) at a point on the horzontal. If the angle of elevation of its centre is 30^(@) , the height of the centre of the balloon is

A spherical ball of diameter d subtends an angle alpha at a man's eye when the elevation of its centre is beta ,then the height of the centre of the ball is (1)/(2)d sin beta cos ec((alpha)/(2))

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 ballon of radius r subtends angle 60^(@) at the eye of an observer. If the angle of elevation of its centre is 60^(@) and h is the height of the centre of the ballon, then which one of the following is correct ?

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 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) .

A round balloon of radius r subtends an angle 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 csc(alpha)/(2)