Question 71190
L=8+2W
(L+W)2=64
W=?
substitute for (L)
(8+2W+W)2=64
(8+3W)2=64
16+6W=64
6W=64-16
6W=48
W=48/6
W=8
width is 8

therefore (L) is
L=8+2(8)
L=8+16
L=24