Question

Pls help

I need to get this done in like a hour
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Answer 1

1)a) 2*
`\pi`*r = 11

6.283*r= 11

11/6.283 = r

r = 1.750 inch

b)
`\pi`*
`r^(2)`*h

=
`\pi`*
`1.750^(2)`*8.5

= 81.850 inch^3

2)a) 2*
`\pi`*r = 8.5

= 6.283*r

= 1.352 inch

b)
`\pi`*
`r^(2)`*h

=
`\pi`*
`1.352^(2)`*11

= 63.167 inch^3