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Answer 1 · 2017-04-29T22:32:42

I got: #314"in"^3#

The volume of a tube/cylinder is given by:
#V=pir^2*h#
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or:
#V=pi*2^2*25=314"in"^3#

Answer 2 · 2017-04-29T22:51:03

A = #100 pi#
= #314.16#

Use formula for volume of a cylinder:

V = #pi * r^2 * h#
= #pi * 2^2 * 25#
= #100 pi#