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Question

Geometry:

The perimeter of one face of a cube is 20cm . Its Volume will be ___ cm3

  • 100
  • 125
  • 400
  • 525
  • None of these
Answer- B

Number of faces in a cube = 6, Perimeter of one face = 4a

According to question, 4a = 20

a = 5 cm

then the volume = a3  = 53 = 125 cm3