Question

How many cuboids of sides 5cm,2cm,5cm are needed to form a cube?​

Answer 1

Answer:

Volume of cuboid =l×b×h=5×2×5=50cm

3

To make a cube, the volume of cuboid should be a perfect cube. Therefore, the volume of 50cm

3

should be multiplied by 2×2×5 to make a perfect cube. i.e.,

50×2×2×5=1000

To, that 20, cuboids are required to form a cube.