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the volume of a cylinder varies jointly as the height and the square of its radius.If the height is doubled and the radius is halved,what will happen to the volume?​

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Answer:

The volume now is halved.

V= 1/2 πr²h

Step-by-step explanation:

Volume of the Cylinder:

V= πr²h

now the problem:

doubled the height: 2h

radius is halved: 1/2r

V= π (1/2 r)²(2h)

V= π (1/4 r²) (2h)

V= 1/2 πr²h

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