2πr

The circumference of a circle.

Q: What is the circumference of this circle?
A: It’s 2πr, thank you.

by a person which is n years old April 8, 2021

2πr

The circumference of a circle

The difference between the circumference and area of a circle is that the circumference is 2πr and the area is πr².

by bluestinger66 January 5, 2023