A round balloon of unit radius subtends an angle of `90^@` at the eye of an observer standing at a point , say A. What is the distance of the centre of the balloon from the point A?

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 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 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 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 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 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)

A round balloon of radius r subtends an angle at the eye of the observer while the angle of elevation of its centre is betadot Prove that the height of the centre of the balloon is rsinbetacos e calpha/2dot