Question

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

Answer 1

Step-by-step explanation:

Area of the circle = pi x r²

= pi x 21²

= pi x 441

= 1386cm²

Answer 2

Step-by-step explanation:

Area of Circle

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