SOLUTION: a steel spacer ring 0,2 m thick has an outside diameter of 1,5 and an inside diameter of 1,3 m. Calculate the volume of steel required to manufacture this ring.

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Question 883829: a steel spacer ring 0,2 m thick has an outside diameter of 1,5 and an inside diameter of 1,3 m. Calculate the volume of steel required to manufacture this ring.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a steel spacer ring 0,2 m thick has an outside diameter of 1,5 and an inside diameter of 1,3 m. Calculate the volume of steel required to manufacture this ring.
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It's a cylinder with an inner cylinder removed.
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Vol+=+pi%2Ar%5E2h