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प्रश्न
Radius of a cylinder is r and the height is h. Find the change in the volume if the height is doubled.
उत्तर
∵ Volume of a cylinder = πr2h
Where, h is height and r is radius of base of the cylinder.
If height is double i.e. h = 2 × h = 2h
Then, its volume = πr2 × 2h
= 2πr2h
Hence, volume became double of original volume.
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