Respuesta :

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
The answer is 18cm I hope