Question

radii of the circle are given below find the area 28cm​

Answer 1

$r = 28cm \\ area = \pi {r}^{2} \\ = \frac{22}{7} \times 28 \times 28 \\ = 22 \times 4 \times 28 \\ = 88 \times 28 \\ = 2464 {cm}^{2}$