1. Divide the pipe's diameter by 2 to find its radius. If it measures, for instance, 8 inches in length, then 8 / 2 = 4 inches. 2. Square this radius  4^2 = 16 square inches. 3.
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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
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pi*r² = pi*d²/4 If you need to take into account the outer diameter then your inner surface area will be pi*(r2r1)² = pi/4 * (d2d1)² where r2 and d2 are outer
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You are not going to learn anything, I SWEAR TRUST ME I did this once for like 2 days and I regretted it I DID not like feeling, like I didn't know how to do math. ASK YOUR MOM OR
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