Respuesta :
Answer:
The answer would be 5.
Step-by-step explanation:
The Formula to find the circumference of a circle is 3.14 x Diameter. So, if you use the opposite operation and divide 31.4 by 3.14, you will get 10. Now, to find the radius you must divide the diameter by 2 which is 5 and this must be the correct answer.
