Question

The radius is 3 so what is the circumference

Answer 1

28.26 cm squared

Explanation:

A = πr^2

A = π(3)^2

A = 9π

A = 9(3.14)

A = 28.26 cm squared

Answer 2

The formula for circumference of a circle
=
2
π
r
The radius
=
3
c
m
(assuming units to be in cm)
2
π
r
=
2
×
22
7
×
3
=
132
7
=
18.86
c
m