The circumference of the circle can be found by using the equation :

Circumference = 2 X Pi X r

where pi is a constant value equal to 22/7 or 3.14

Circumference = 2 X 3.14 X 7

Circumference = 43.96 cm.

Circumference = 2 X Pi X r

where pi is a constant value equal to 22/7 or 3.14

Circumference = 2 X 3.14 X 7

Circumference = 43.96 cm.