Posted by Ethan on .
The widths (in meters) of a kidneyshaped swimming pool were measured at 3meter intervals as indicated in the figure. Use the Midpoint Rule with n = 4 to estimate the area S of the pool if a1 = 15.5, a2 = 18, a3 = 17, a4 = 14, a5 = 12.5, a6 = 12, and a7 = 12.

Calculus 
Abdul,
I would to see answer for this question