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posted by rachel Monday, April 18, 2011 at 12:18pm.
a cross section of a hollow circular pipe shows that its inner diameter is 2 1/10inches and that the pipe is 3/5inch thick. what is the outside diameter
2 1/10 + 6/5 2 1/10 + 12/10 = 2 13/10 = 3 3/10
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