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36" diameter pipe has an area of 3*3*Pi/4 = 7.07 square feet
A 20 foot length then has 7.07*20 = 141.4 cubic feet.
That's one correct answer.
It's also 141.4*7.48 = 1,057 gallons of water.
No.100 ml = 0.1 litres
it takes 100,000,000 apples to fill a car
As you fill it, a square 12-ft x 12-ft pool takes 1,077.2 gallonsfor every 1 foot deep.To fill it to the 10-ft rim will take 10,772gallons.Note:If you want to watch the thrilling drama unfold on your water meter, the meteris probably marked in cubic feet. The pool takes 144 cubic feet of water for eachfoot deep, and 1,440 cubic feet to fill it to 10-ft deep.
because it is important to fill a box with water at regular intervals
Two litres of water might fill a fish bowl.