NCERT Class 8 Mathematics Solutions: Chapter 11 –Mensuration Exercise 11.4 Part 2

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Surface area of Cuboid

Surface Area of Cuboid

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1. Find the height of a cuboid whose base area is and volume is ?

Answer:

Given,

Base area of cuboid and

Volume of cuboid

Volume of cuboid

[Base area ]

So, the height of cuboid is .

2. A cuboid is of dimensions. How many small cubes with side can be placed in the given cuboid?

Answer:

Given,

Length of cuboid

Breadth of cuboid and

Height of cuboid

We know that,

Volume of cuboid

And,

Volume of cube

Number of small cubes

So, the required cubes are .