Question

What am I doing wrong?
"The canister shown measures 7" in diameter and has a height of 7.5". Find the capacity (volume). Do not round your answer."
The formula for Volume in a cylinder is the base times the height. I ended up with 164.85, but the answer was supposed to be 288.4875

Answer 1

area of a cylinder= (base)*(height)
which is =(area of circle)*(height)

so
area of cylinder=\[(\pi r^2) (height)\]
****remember radius is half of diameter***
so r=3.5

finally,
\[\pi * 3.5^2*7.5=288\]