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The cross-sectional area of a tube is equal to the area of the outer circle minus the area of the bore, so using the formula for area of a circle, we can do the following.

A = pi*(42/2)2-pi*(26/2)2 = 272 pi, A = 854.513 mm2

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14y ago
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Anonymous

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4y ago

854mm

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Q: When a pipe has an outside of diameter 42mm and a bore of 26mm find its cross-sectional area?
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