Maths help
posted by Ali .
Hi
MY question is if a cylinder has a volume of 72cm cubed and a crosssectional area of 18cm squared. Work out the height of the cylinder
Can someone show me how we do it by the steps
The crosssection of a cylinder is a circle.
so pi(r)^2=18
solve for r
let the height be h cm
volume of cylinder = pi(r^2)h
72 = pi(r^2)h, but you know r, so you can now find h
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