Question

Find the circumference of a circle whose radius is equal to $15\text{cm}$. Use $\pi =3.14$.

Answer 1

As we know that, circumference of a circle is equal to $2\pi r$ whereas, $r$ is the radius of circle.

So, by using this formula,

Circumference of circle $=2\times 3.14\times 15$

$=94.2\text{cm}$