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Luas Bangun = Luas I + Luas II
= 360 + 90
= 450 Cm²
Luas I ( Persegi Panjang ) = P × L
= 15 × 24
= 360 Cm²
Luas II ( Segitiga ) = × Alas × Tinggi
= × 15 × ( 36 - 24 )
= × 15 × 12
= × 180
= 90 Cm²