Jawabanmu

2014-05-22T16:38:10+07:00
Luas : p×l = 18 × 12 = 216 cm
kll : 2 (p+l) = 2(18+12) = 2 × 30 = 60 cm2
2014-05-22T16:39:29+07:00
Luas : P*L = 18*12 = 216
kel : 2(p+l) = 2(18+12) = 2*30 = 60
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