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What effect does doubling the radius and tripling the height of a cylinder have on the cylinder's volume?

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please help
asked Apr 21, 2014 in PRE-ALGEBRA by anonymous

1 Answer

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Volume of cylinder V = πr 2 h

Here r  = radius, height = h .

If the radius of cylinder is doubling then the radius is 2r .

If the height of cylinder is tripling then the height = 3h

Now the volume of cylinder = π*(2r) 2*3h

V = π*4r 2*3h

V = 12πr 2h.

Volume is increasing 12 times of original volume of cylinder.

answered Apr 22, 2014 by david Expert
edited Apr 22, 2014 by david

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