while the angle of elevation of its centre is β. The height of the centre of the balloon is:

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A spherical balloon of radius r subtends an angle α at the eye of an observer, while the angle of elevation of its centre is β. The height of the centre of the balloon is:
25
Nov
A spherical balloon of radius r subtends an angle α at the eye of an observer, while the angle of elevation of its centre is β. The height of the centre of the balloon is: A spherical balloon of radius r subtends an angle α at the eye of an observer while the angle of [...]
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