The circumference of a circle is 44 cm. Taking $\pi = \frac{22}{7}$, what is its area?

हल

1. 01

   Find the radius from the circumference: $2\pi r = 44$, so $r = \frac{44 \times 7}{2 \times 22} = 7$ cm.

2. 02

   Then apply the area formula: $\pi r^2 = \frac{22}{7} \times 7^2$.

3. 03

   $\frac{22}{7} \times 49 = 22 \times 7 = 154$ cm².