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Q.

The length of cube is $20 c m$ . Find its volume $c m 3$ .

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a

2000 c m 3

b

3000 c m 3

c

8000 c m 3

d

4000 c m 3

answer is C.

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Detailed Solution

A cube is a three-dimensional solid object bounded by six square faces, facets or sides with three meeting at each vertex. The cube is the only regular hexahedron and is one of the five Platonic solids, having 6 faces, 12 edges and 8 vertices.
Given that: The length of cube,

l = 20 c m

We know that, the Volume of the cube is -

V = l 3

V = (20) 3 V = 8000 c m 3

The required Ans is the volume

8000 c m 3

.
So, the correct answer is Option 3.

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The length of cube is 20cm . Find its volume c m 3 .