Question

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

Answer 1

Circumference, c = 176 cm
Now, c = 2πr (where 'r' is the radius of circle)
⇒176 = 2 × $\frac{22}{7}$ × r
⇒r = 176 × $\frac{1}{2}$ × $\frac{7}{22}$
⇒r = 28
∴ Radius of the circle = 28 cm