Question

if the radius of a circle is 21 centimetre then the area of the circle is​

Answer 1

1386 cm^2

Step-by-step explanation:

area of circle = πr^2

$\frac{22}{7} \times 21 \times 21$

$= 22 \times 3 \times 21$

= 1386 cm^2

Answer 2

Answer:

1386²

Step-by-step explanation:

=22/7 *21*21

=22*21*3

=,63*22

=1386