Which of the following expressions correctly shows the relationship between the circumference and the area of a circle?

A=πr2

C=2πr

C2=4πA

Cd=π

1 answer

The correct expression that shows the relationship between the circumference and the area of a circle is:

C=2πr

This formula states that the circumference (C) of a circle is equal to 2 times the radius (r) times pi (π).