Question 168295
W=L-12
2W+2L=108
2(L-12)+2L=108
2L-24+2L=108
4L=108+24
4L=132
L=132/4
L=33 IS THE LENGTH.
W=33-12
W=21 IS THE LENGTH.
pROOF:
2*21+2*33=108
42+66=108
108=108