Extremely Hard math problem: Volumes of Right Cylinders and how to find the length

This is extremely hard for me and i am having alot of trouble understanding this


So the picture shows a cylinder with a radius of x
and a height of 2cm
and a volume of v=72π cm cubed

that's all it gives me and it says to find the length x using the volume they gave

i just dont understand that.

i know about a bit v=bh but this is really hard
can anyone tackle this and help me

i also am having trouble with the next problem that says the volume is v=1440 m cubed

and the base is 15 m and the height is 8 m

and then the other side of the base (the width, or length) says x

help please please help me out

v = πr²h

That's really all you need to know! Sub in the numbers that you know, and find the number you don't know.

Ok, well thanks for the points anyway. I'm not going to teach you base-arithmetic. Ask your teacher tomorrow.

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