Question

The area of a rectangle is 42 square feet. If the length and width are whole numbers, what are the least and greatest possible perimeters?

Answer 1

A = L * W
P = 2(L + W)

lets get all the factors of 42.....
1 * 42....P = 86
2 * 21...P = 46
3 * 14...P = 34
6 * 7....P = 26

least possible perimeter = 26
greatest possible perimeter = 86