Discussion of Question with ID = 043 under Volume-and-Surface-Areas

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Question

The areas of three adjacent faces of a cube are 2, 3 and 6. It's volume is?

A

6 cu. units.

B

8 cu. units.

C

4 cu. units.

D

10 cu. units.

Soln.
Ans: a

Let the sides be L, B and H. Then LB = 2, BH = 3 and LH = 6. Multiplying all three of them L2B2H2 = (2 × 3 × 6) = 36 = 62, which gives LBH = 6 = volume of the cuboid.


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