Posted by **tdog** on Thursday, March 1, 2012 at 7:14pm.

a paper towel roll is shaped like a cylinder. it is 4cm wide and 28 cm tall. find its volume to the nearest tenth. use 3.14 for pi

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**MathMate**, Thursday, March 1, 2012 at 7:29pm
Volume of a cylinder

=πr²h

where r=radius of the base, h=height.

Hint:

4 cm wide means that the diameter is 4cm, so the radius is half that, or 2cm.

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