# In a cylinder, if radius is halved and height is doubled,find the total surface area.

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let radius of cylinder = 4 cm.

volume= 22/7 * 4*4*7

=352 cm cube.

if radius is halved= 4/2 = 2cm.

height is doubled= 7*2=

14cm.

volume = 22/7*2*2*14

volume= 176 cm cube.

it implies that the volume will be halved.