Question:If the areas of three adjacent faces of a cuboid are x, y, z, respectively, then the volume of the cuboid is : 

A `xyz` 
B `2xyz` 
C `√xyz` 
D `3√xyz` 

+ Answer
C 

+ Explanation
Let length` = 1`breadth`= 6 cm` & height`= h.` Then,

lb`= x, bh`= y, and lh`= z.`

On multiplying, we get `(lbh)^2 = xyz`

`or lbh =√xyz.`

:. Volume`=  √xyz.`

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Irin Moni

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