2 (p x l + p x t + l x t)
2 (4x .3x + 4x .2x + 3x.2x)
2(12x²+8x²+6x²)
24x²+16x²+12x²=42x²
52x²=468
x² = 468÷52
x² = 9
x = 3
tinggi balok memiliki perbandingan 2
2(3)=6 cm
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2 (p x l + p x t + l x t)
2 (4x .3x + 4x .2x + 3x.2x)
2(12x²+8x²+6x²)
24x²+16x²+12x²=42x²
52x²=468
x² = 468÷52
x² = 9
x = 3
tinggi balok memiliki perbandingan 2
2(3)=6 cm