Question 312160
L=4W+4
P=2L+2W
578=2(4W+4)+2W
578=8W+8+2W
10W=578-8
10W=570
W=570/10
W=57 ANS.
L=4*57+4
L=228+4
L=232 ANS.
PROOF:
578=2*232+2*57
578=464+114
578=578