Question

If the radius of circle is 21 cm then find its area​

Answer 1

Explanation:

Area of the circle = pi x r²

= pi x 21²

= pi x 441

= 1386cm²

Answer 2

Explanation:

Area of Circle

`= \pi {r}^(2) \\ = \pi(21) {}^(2) \\ = 441\pi \: cm {}^(2) or \: 1385.442cm {}^(2)`