RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)

Subject: Maths - Class 8th

Q. No. 3 of Exercise 21.4

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The areas of three adjacent faces of a cuboid are x, y, and z. If the volume is V, prove that V2 = xyz.


Areas of three faces of cuboid =

Let length of cuboid =





Or we can write ,


If ‘V’ is volume of cuboid = V =



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