In a cylinder, if the radius is halved and the height is doubled, then the volume will be
Let the radius be r and height be h
Volume of a cylinder = 
When radius = 
and height = 2h
Volume = 
The volume will be halved.
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In a cylinder, if the radius is halved and the height is doubled, then the volume will be
Let the radius be r and height be h
Volume of a cylinder =
When radius = and height = 2h
Volume =
The volume will be halved.