the length of a cuboid is twice as long as its width and its height is 8 cm. if its volume is 6400 cm cube find the width of the cuboid.
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Step-by-step explanation:
Let x be the breadth of the cuboid.
Height of the cuboid =
2
x
Length of the cuboid =2x
∴ Volume of the cuboid =x×
2
x
×2x=x
3
⇒x
3
=512
⇒x=
3
512
=8
∴ Length of the cuboid =2×8cm=16cm
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