Question

Two cubes of volume 64 centimeter cube are joined end to end. Find the volume of the cuboid.

Answer 1

Let side of cube be $acm$

Then, volume$=a^3$

i.e.,$64c{m}^3=a^3$

Hence,$a=4cm$

Now for volume of cuboid,

$l=8cm,b=4cmandh=4cm$

Therefore volume of cuboid$=(8\times 4\times 4)c{m}^3$

$=128c{m}^3$