Jawabanmu

2014-08-18T13:06:29+07:00
A. L = p × l = 12 × 5 = 60
b. L = p × l = 10 × 8 = 80
c. L = p × l = 15 × 12 = 180
1 4 1
2014-08-18T13:58:30+07:00
A panjang12cm dan lebar=5cm
L = P x l
L = 12 x 5
L = 60 cm²
b  panjang 10cm dan lebar==8cm
L = P x l
L = 10 x 8
L = 80 cm²
c panjangg 15cm dan lebar=12cm
L = P x l
L = 15 x 12
L = 180 cm²