Question

a cylinder shaped barrel has a diameter of 3 feet and a height of 4.5 feet if the barrel is empty approximately how much water is needed to fill the barrel and I need work to be shown please and thank you

Answer 1

Volume of Cylindar:
$v = \pi {r}^{2} h$
the radius is half of the diameter

$v = \pi {1.5}^{2} 4.5$
v = 31.8

Option A.) 32 cu. ft.