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The cross-sectional area of a pipe can be calculated using the formula for the area of a circle, A = πr^2, where r is the radius of the pipe. Since the diameter of the pipe is given as 4 inches, the radius would be half of the diameter, so r = 2 inches. Plugging this value into the formula, we get A = π(2)^2 = 4π square inches. Therefore, the cross-sectional area of the 4-inch pipe is 4π square inches.

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1mo ago
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10y ago

A "4-inch pipe" means it has a diameter of 4 inches, which makes the radius 2 inches.

Did you ever see the formula pi*r^2 for area of circle?

The answer is 4pi where pi=3.1416

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Q: What is the cross sectional area of the 4 inch pipe?
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