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Question

Geometry:

The length of the diagonal of a cube is 6 cm. The volume of the cube (in cm3) is ____

  • 18 √3
  • 24 √3
  • 28 √3
  • 30 √3
  • None of these
Answer- B

Let us assume that edge of the cube is Z cm.

√3 Z =6

Z= 6/√3 = 2√3 cm

Volume of the cube= (edge) 3 = (2√3)3 = 24 √3