A collar of Styrofoam is made to insulate a pipe. Find its volume . The large R is to the outer rim. The small radius r is to the edge of the insulation. Use 3.14 for pi. r = 5 in. R = 6 in. h = 19 in. Round to two decimal places. It says to subtract volume of the inner cylinder from the volume of the outer cylinder. Round answer two decimal places.
2 answers
volume = ( R^2 - r^2) pi h
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