how do you calculate the volume of a ring

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how do you calculate the volume of a ring

ryankessler Aug 6, 2014

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Best Answer

You could thing of a simple ring as being a smal hollow cylinder.

Or an anulus right prism.

Let the outer circle have a radius of R and the inner circle have a radius of r. And let the ring be h units wide.

$$\\A=\pi(R^2-r^2)\;units^2\\
V=\pi h(R^2-r^2)\;units^3$$

Melody Aug 6, 2014

Melody · Answer 1 · 2014-08-06T06:56:28

You could thing of a simple ring as being a smal hollow cylinder.

Or an anulus right prism.

Let the outer circle have a radius of R and the inner circle have a radius of r. And let the ring be h units wide.

$$\\A=\pi(R^2-r^2)\;units^2\\
V=\pi h(R^2-r^2)\;units^3$$

Alan · Answer 2 · 2014-08-06T06:51:46

Depends on the cross-sectional shape of the ring. Is it rectangular/circular/elliptical...?