Jawabanmu

2014-06-09T18:50:28+07:00
=2(p+l)
2(p+l) = 72
p+l = 26

jika misal panjang = x, maka
x+x-8 = 36
2x-8=36
2x=42
x=21

maka,
luas = p.l
21.13
=273