geometry
posted by rose .
the perimeter of a rectangular swimming pool is 40 ft. the length of the pool is 12 ft. what is the area of the pool

A equal L x W
if the perimeter is 40 and you know that the length is 12...P equals 2(L)plus2(W).Your two lengths would ne 24 so your 2 widths would be 16. (8 plus 8)
12 times 8 is 96 sq ft for the area. 
40 multiplyed by 12 equalls area

480 units squared