ByLinda137
I have to calculate the edge length and the volume of a cuboid. How do I calculate the edge length if O = 24cm²?
Thank you in advance
(1 votes)
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Mit den Angaben könnte man es nur dann berechnen, wenn der Quader die Sonderform Würfel hat. Wenn es ein Quader mit 3 unterschiedlichen Seitenlängen ist, ist die Aufgabe nicht ohne weitere Angaben lösbar.
Unter der Annahme, dass es ein Würfel ist:
O = 6a² = 24 cm² durch 6
a² = 4 cm² Das ist die Fläche von einem Quadrat, also eine Fläche von einem Quader. Dann Wurzel ziehen
a = 2 cm Kantenlänge.
Volumen V = a³ = (2cm)³ = 8 cm³
Woher das a?
Das a ist die Kantenlänge von einem Würfel.
Formeln:
Oberfläche O = 6a²
Volumen V = a³