I need to calculate the diameter of a cylinder . However the cylinder has a hemisphere as a lid and a flat bottom.
I am given the overall surface area which is 2M square
The overall height is 84cm. Thats it
I can formulate the cylinder diameter if it didn't have a hemisphere top using quadratics however i just cant see how to get this.
SA of hemisphere = 2 pi r square
Sa of base = 1 Pi r square
Cylinder height H= h - r
Cylinder area = 2 pi r H
any help please.....