Question

a) Find the area and circumference of circle whose radius is 21 cm. (take II= 2217)​

Answer 1

Answer:

132 cm

Step-by-step explanation:

It is given that,

Radius of a circle = 21 cm.

We know that π=22/7,

So the circumference of a circle = 2πr

Substituting the values,

=2∗22/7∗21

So we get,

=2∗22∗3

=132 cm.