A spherical balloon of radius \( r \) forms an angle \( \theta \) at the eye of the observer. If... VIDEO
A spherical balloon of radius \( r \) forms an angle \( \theta \) at the eye of the observer. If the angle of elevation of its centre is \( \phi \), then find the height of the centre of balloon.https://bit.ly/YTAI_PWAP https://www.pw.live
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