# Math

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A length of metal pipe has a circumference of 2.5 inches. the pipe is 1/16 inches thick. a gas fitter needs to know the inside diameter of the pipe to calculate the gas pressure. What is the total diameter of pipe including metal? how much of the diameter is metal? what is the inside diameter of the pipe?

• Math -

the outside diameter d = 2.5/3.14 = 0.796

So, the inside diameter is 0.796-0.0625 = 0.734

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