Question

Find the circumference of a circle of radius 7 cm. [Take $\mathrm{\pi }=\frac{22}{7}$]

Answer 1

Radius(r) of the given circle = 7 cm
Circumference of the circle, C = 2 πr
$$\begin{gathered} =\left(2\times \frac{22}{7}\times 7\right)\mathrm{cm} \\ =44\mathrm{cm} \end{gathered}$$
Hence, the circumference of the given circle is 44 cm.