211k views
5 votes
The radius of a circle is 1 kilometer. What is the circle’s circumference?

1 Answer

3 votes

Answer:


2\pi

Explanation:

Formula of circumference is
C = 2\pi r

r = radius

plug in the numbers into formula to get


2\pi (1) which will eqaul
2\pi

User Montassar Bouajina
by
4.4k points