Question

Circle O has a circumference of 36 cm.

Answer 1

Answer: 18 cm

Step-by-step explanation:

1. C= 2πr
2. plug it in! 36 π = 2 π r
3. divide both sides by π and you get 36= 2r
4. divide both sides by 2 and you get that 18= r
5. so r, or the radius, equals 18

Answer 2

The answer is 18cm I hope