Question

A cylinder has a volume of 231 $c{m}^3$. If the height of the cylinder is 6 cm, a ball can fit into the cylinder if it's radius is = ___.

• A. Circle
• B. 4 cm
• C. 2.5 cm
• D. 5 cm

Answer 1

Answer: (A), (C)

The correct options are
A

Circle

C 2.5 cm

Volume of cylinder $=\pi \times r^2\times h$
$=\frac{22}{7}\times r^2\times 6$
$\Rightarrow r=3.5$
So, a ball can fit inside the cylinder if its radius is less than 3.5 cm.
Thu, options A and C are correct.