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2(5x + 2) + 2(2x + 3) = 94
10x + 4 + 4x + 6 = 94
14x + 10 = 94
14x = 94-10
14x = 84
x = 84 / 14 = 6
maka p = 5(6) + 2 = 30 + 2 = 32cm
l = 2(6) + 2 = 12 + 3 = 15 cm
7x + 5 = 94/2
7x + 5 = 47
7x = 47-5
7x = 42
x = 6
Panjang = 5x+2 = 5(6)+2 = 30+2=32cm
Lebar = 2x+3 = 2(6)+3 =12+3=15 cm