Question

The given figure shows a solid formed of a solid cube of side $40cm$ and a solid cylinder of radius $20cm$ and height $50cm$ attached to the cube as shown. Find the volume of the whole solid. $[Take\pi =3.14]$.

• A. $126800$
• B. $117800$
• C. $124400$
• D. None of the above

Answer 1

The correct option is A $126800$

Solid cube of side $=40cm$
Solid cylinder of radius $=20cm$ and height $=50cm$
Volume of the whole solid $=$ Volume of cube $+$ Volume of cylinder
$V=a^3+\pi r^{2}h$
$V={\left(40\right)}^3+3.14\times {\left(20\right)}^2\times 50$
$V=126800{cm}^3$