Question 317581
L=W+20
P=2L+2W
164=2(W+20)+2W
164=2W+40+2W
164=4W+40
4W=164-40
4W=124
W=124/4
W=31 IN. ANS. FOR THE WIDTH.
L=31+20=51 IN. ANS. FOR THE LENGTH.
PROOF:
164=2*51+2*31
164=102+62
164=164