A round balloon of radius r subtends an angle α at the eye of the observer while the angle of - Maths - Some Applications of Trigonometry

Question

A round balloon of radius r subtends an angle α at the eye
of the
observer while the angle of elevation of its centre is β
Prove that the
height of the centre of the balloon is r sin β
cosecα/2

Manmeet Singh · Accepted Answer

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A round balloon of radius r subtends an angle α at the eye of the observer while the angle of elevation of its centre is β. Prove that the height of the centre of the balloon is r sin β cosecα/2. .

A round balloon of radius r subtends an angle α at the eye of the

observer while the angle of elevation of its centre is β. Prove that the

height of the centre of the balloon is r sin β cosecα/2.

.