Question

What is the height of a cylinder if it has a radius of 3 centimeters and a volume of 254.34 cubic centimeters? (Use 3.14 for π.)

Answer 1

V=B*h, Volume=Base*height
here Base is an area
for cylinders, the base is a circle

you know V
you know radius so you can find area of base, B

with all that, you can find the height h easy

Answer 2

\[A _{circle}=B=\pi r ^{2}\]