A spherical balloon of radius 1 m subtends an angle of 60° at the eye of an observer. If the angle of elevation of its centre is 45°, what is the height of the centre of the balloon? Assume that the eye of observer is at ground level.

A spherical balloon of radius 1 m subtends an angle of 60° at the eye

1.	A spherical balloon of radius 1 m subtends an angle of 60° at the eye of an observer. If the angle of elevation of its centre is 45°, what is the height of the centre of the balloon? Assume that the eye of observer is at ground level.
A.	100 cm
B.	100√2 cm
C.	100√3/3 cm
D.	100√3 cm
Answer» C. 100√3/3 cm

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A spherical balloon of radius 1 m subtends an angle of 60° at the eye of an observer. If the angle of elevation of its centre is 45°, what is the height of the centre of the balloon? Assume that the eye of observer is at ground level.

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