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44 = 2 (12 + l)
22 = 12+l
l=22-12
l=10 cm
L = pxl
L= 12 x 10
L= 120 cm²
44 = 2 x 12 + 2l
44 = 24 + 2l
2l = 20
l = 10
Maka;
Luas = p x l = 12 x 10 = 120 cm²