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10² = (4x)² + (3x)²
100 = 16x² + 9x²
100 = 25x²
x² = 4
x = 2
setengah diagonal 1 = 4x = 8
diagonal 1 = 8 x 2 = 16
setengah diagonal 2 = 3x = 6
diagonal 2 = 6 x 2 = 12
Luas = 1/2 x 16 x 12 = 96 cm²