Below is a formula and it does not refer to any particular volume, The letters, l, R & r you can assign whatever numbers you choose. but just want to know how to write this to Excel. I did not have Geometry or Trig in school and have a TI-84 Plus calculator and don't know how to use it. Doing my best to learn Excel

V = πh (R2 – r2) (Those 2's stand for Square)


Thanks

Jerry