SOLUTION: What is the surface area of a cardboard tube that is 4 inches long with a circumfrence of 5 inches?

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Question 582357: What is the surface area of a cardboard tube that is 4 inches long with a circumfrence of 5 inches?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the surface area of a cardboard tube that is 4 inches long with a circumfrence of 5 inches?
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The lateral area, not including the ends, is
A+=+2%2Api%2Ar%2Ah+=+C%2Ah
= 20 sq inches