Answer:
7.85
Step-by-step explanation:
To find the perimeter of the circle, also known as the circumference you have to use the formula C=pi(diameter). The diameter is the radius times two, and in this case, the radius is 5. The diameter is 10 and when you multiply 10 by pi, you should get 31.4. Because it is a quarter circle, you divide the circumference by four and you should get 7.85.
