A. If you draw the graphs you will find that B, C and D are all false.
The formula for the volume of a cylinder is πr^2*h. If you plug in the numbers of the radius and the height. π10^2*8=800π meters^3.
09.76 laos jajskwiqisnbsbsbsbsb
I would pick C sorry if it’s wrong

Look at the picture.
The common part does not exist.