SOLUTION: what is the surface area of a half cylinder with the diameter of 12" and the height of 20" ?

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Question 203106: what is the surface area of a half cylinder with the diameter of 12" and the height of 20" ?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(12*3.14*20)/2=376.8sq in