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Panjang EG= √GH²+EH²
= √144+36
= √180= √36.5 = 6√5
Bidang diagonal balok berbentuk persegi panjang, maka Luas bidang diagonalnya adalah :
Luas = p xl
= EG. GC
= 6√5.8 = 48√5 cm²
Semoga membantu :)
AC² = 12² + 6²
AC² = 144 + 36
AC = √180
AC = 6√5 cm
Luas ACGE = AC × CG
= 6√5 × √BG² - BC²
= 6√5 × √10² - 6²
= 6√5 × 8
= 48√5
Jadi, luas bidang diagonal ACGE = 48√5 cm²