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Verified answer
Volume Persegi Panjang 1 :V = p × l
V = (12 - 5) × (7 + 2)
V = 7 × 9
V = 63 cm²
Volume Persegi Panjang 2 :
V = p × l
V = 5 × 2
V = 10 cm²
Volume Gabungan :
V = 63 cm² + 10 cm²
V = 73 cm²
Maaf Kalau Salah
Verified answer
2×5=10cm²=(12-5)×(7+2)=7×9=63cm²
Jadi luas bangun gabung itu adalah Bangun 1+Bangun 2
Yaitu:
10+63=73cm²