Question

Find the circumference of a circle whose radius is 4.2 centimetres

Answer 1

hope it helps..........

Answer 2

as radius is given = 4.2 cm

to find circumference of circle we will use formula

I. e = 2πr²

so,

2*22/7 * 4.2

= 44/7 *4.2

= 44* 0.6

= 26.4

hence 26.4 is the circumference of circle