The positive difference between the circumference of circle B and the circumference of circle A is 1. Thus, the correct option for this question is A.
<h3>What is the circumference of the circle?</h3>
The circumference of the circle may be defined as the total stretch of the boundary of the circle. The formula for calculating the circumference of the circle is as follows:
where, C = circumference of the circle.
π = the constant pie.
r = radius of the circle.
According to the question,
The circumference of the circle A = 2π (r+1).
The circumference of the circle B = 2π (r+2).
∴The positive difference between the circumference of circle B and the circumference of circle A is as follows:
2π (r+2) - 2π (r+1) = 1.
Therefore, the positive difference between the circumference of circle B and the circumference of circle A is 1. Thus, the correct option for this question is A.
To learn more about the circumference of the circle, refer to the link:
brainly.com/question/9782777
#SPJ1
