Question

If the circumference of a circle is $176cm$, find its radius.

Answer 1

Circumference of a circle$=2\pi r$

$\Rightarrow 176=2\times \frac{22}{7}r$

$\Rightarrow r=\frac{176\times 7}{2\times 22}=28$cm

$\therefore$ Radius of the circle$=28$cm