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to divide a pipe into sections measure the outside diameter then multiply by 3.142 this will give you the circumference divide this number by how many sections you require place a mark anywhere on the on the pipe then measure from that mark your answer

The best method for calculating the cross section area of a round pipe or tube is to use the following formula:

((D-W)*W)*PI

Where as D= Outside Diameter Measurement

W= Wall Thickness

PI= 3.1416

that is circumference. The answer I have is: diameter squared x .7854

Ex. 3inch pipe (inside diameter)

3 x 3 x .7854= 7.0686

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