3.1416"
Answer:
3.1416 square inches.
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8 inch schedule 40 pipe has a cross sectional area of 0.0583 square feet
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.
To calculate the volume of water held by the hose, we first need to find the cross-sectional area of the hose. The formula for the area of a circle is A = πr^2, where r is the radius of the hose (which is half the diameter). In this case, the radius is 0.75 inches. Converting the radius to feet (0.0625 feet), we can calculate the area of the hose's cross-section. Multiplying the cross-sectional area by the length of the hose (100 feet) gives us the volume of water held by the hose.
If you mean a circle area than A = 63.61725 inch². Area A = pi times diameter² / 4.
A 48-inch diameter circle has an area of: 12.57 square feet.