Question

The length of cube is $ 20cm. $ Find its volume $ c{m^3} $

Answer 1

Hint: A cube has six square faces and all these six faces have the sides of equal length. Segregate the known and the unknown terms from the given problem statement.
Volume $ = sides \times sides \times sides $

Complete step-by-step answer:
A cube is a three-dimensional solid object bounded by six square faces, facets or the sides with three meeting at each vertex. The cube is the only regular hexahedron and is the one of the five platonic solids which has $ 6 $ faces, $ 12 $ edges and $ 8 $ vertices.
Given that: The length of cube, $ l = 20cm $
Volume, $ V = ? $
We know that, the Volume of the cube is -
  $
\Rightarrow V = l \times l \times l \\
  V = {l^3} \\
  $
 Put, $ l = 20cm $ in the above equation.
 $ $ $ $ $
  V = 20 \times 20 \times 20 \\
  V = 8000c{m^3} \\
  $
The required answer is the volume, $ V = 8000c{m^3} $

Note: There is the difference between cube and cuboid and therefore volume of the cuboid is the product of the length, the breadth and the height. Cuboid is the solid box having every surface of the rectangle of the same area or the different areas.