another cylinder question

volume formula is pi r-sqrt*h

the dimensions are 8 inches with a 1.6 radius

so the dimensions is in the middle it takes to radius to get to 8 right?

well so you would want to times 8x4 and pi equals 3.14 or 22/7 but if your school says you have to use 3.14 only then that's what you will have to do but anyhow im more comfortable with using 22/7 so 32x3.14 is..... that's you answer :)