If the volume of a cube is 27cm3, then the diagonal of cube is
Answer & explanation
Correct answer: option 2
Side of a cube = a cm
Diagonal of a cube = \(\sqrt {3}\)a cm
Volume of a cube = a3
According to question:
Volume of a cube = 27 cm3
⇒ a3 = 27
⇒ a = 3
⇒ Diagonal = \(\sqrt {3}\)a = 3\(\sqrt {3}\)