1. Detach one end of the pipe to expose its cross section, if possible. 2. Measure the inner diameter of the pipe by finding the greatest distance between two points on its circumference
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The perimeter is the distance around the outline of an object or shape. To calculate the perimeter of any shape, measure the length of each side, then add all of the lengths together
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Wetted perimeter is one measurement used to analyze river and streambeds. It is the total linear distance in a cross section of the river or stream that is in contact with the water
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Although it is different for pretty much each shape, the basic answer is just that you add up the sides. For circular shapes the formula is: Pi X Radius to the 2nd power.
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