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44= 2(12+l)
22=12+l
l=22-12
l=10
Luas= pl
L= 12.10
L= 120
Panjang = 12 cm
Lebar : ?
2(p+l)= Keliling
2(12+l)= 44
24 +2l= 44
2l = 44 - 24
2l = 20
l = 20/2 = 10 cm
Maka luasnya = 12 x 10 = 120 cm persegi