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Verified answer
Diagonal ruang balok = √p^2 + l^2 + t^2= √20^2 + 12^2 + 9^2
= √400+144+81
= √625
= 25 cm
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Verified answer
AB = 20 cmBC = 12 cm
CG = 9 cm
Diagonal ruang (AG)
BG = akar dari (12^2 + 9^2) = 15cm
AG = akar dari (20^2 + 15^2) = 25 cm