a, b, h ---- krawędzie prostopadłościanu
a * b = 8,64
a * h = 12,96 ⇒ a = 12,96/h
b * h = 15,36 ⇒ b = 15,36/h
12,96/h * 15,36/h = 8,64
199,0656/h² = 8,64
8,64h² = 199,0656
h² = 199,0656 : 8,64
h² = 23,04
h = 4,8cm
V = a * b * h
V = 8,64 * 4,8
V = 41,472cm³ ------- odpowiedź
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a, b, h ---- krawędzie prostopadłościanu
a * b = 8,64
a * h = 12,96 ⇒ a = 12,96/h
b * h = 15,36 ⇒ b = 15,36/h
a * b = 8,64
12,96/h * 15,36/h = 8,64
199,0656/h² = 8,64
8,64h² = 199,0656
h² = 199,0656 : 8,64
h² = 23,04
h = 4,8cm
V = a * b * h
V = 8,64 * 4,8
V = 41,472cm³ ------- odpowiedź