Yeah.. I have one other question dealing with formulas and whatnot.( sorry )
Here's the problem.Its on a worksheet, so I copied it.
Help and/or explanation on how to do it?
So, work out the total area; multiply it by the width of the pool (20') and there's the volume, in cubic feet, of water required. Multiply by 7.5 to convert to gallons and divide by 10 to get the number of minutes it will take (because the rate of flow is 10 gallons per minute).
(* Area of trapezium = half the sum of the parallel sides times the perpendicular distance between them.)