Final answer:
Without the specific values for the arc length and central angle provided by the student, we cannot calculate the exact radius of the circle. The radius can be determined by using the formula relating the arc length, central angle and radius once those values are known.
Step-by-step explanation:
The relationship between the arc length (As), the radius (r), and the central angle (Δθ) in degrees is given by the formula As = (Δθ/360) * 2πr. Since the question does not provide specific values for As or Δθ, we use the provided information indicating that for one full revolution (Δθ = 360 degrees), the arc length is equal to the circumference of the circle. The circumference of the circle is 2πr, which gives us a full rotation angle of 360 degrees. Not having the specific values from the student's question, we cannot determine the radius; however, if the student provides those values, the correct length of the circle's radius can be calculated using the formula.