Question

A cylinder has a volume of 19 cm³. If the radius is doubled, what is the volume of the new cylinder?​

Answer 1

New volume is 4 times larger than original volume

Explanation:

ORIGINAL Volume of a cylinder = pi h r^2 <===== now double 'r'

New volume = pi h (2r)^2 = 4 pi h r^2 <===this is 4x the ORIGINAL volume