Question

the radius of a cylinder is doubled and its height remaining same what will happen to its volume

Answer 1

Let the radius be r

Height be 1 cm

Volume of cylinder=πr²h

=22/7×r²×1

After doubling the radius

Radius =2r

Volume=πr²h

=22/7×(2r)²×1

=22/7×4r²

=88/7r²

Change in volume =88/7r²÷22/7r²

= _88_r²×7__

22 r² ×7

= 4

Therefore. the volume will be increase 4 times if we double the radius of cylinder

Answer 2

Answer:

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ANSWER IS HERE-:

Step-by-step explanation:

: The answer with explanation is in image

ANSWER = 4 times.

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