Question

A right cylinder has a diameter of 40 mm and a height of 30 mm.What is the volume of the cylinder

Answer 1

The volume of a cylinder is the area of the base multiplied by the height.
Acircle = (pi)r^2
Vcyl = (Acircle)h
Vcyl = (pi)r^2h
where r = radius of the base, and h = height of the cylinder.
Use 3.14 for pi, 20 mm for r and 30 mm for h and calculate