In this problem, it is asking you to find the circumference of the circle. The equation to the circumference of a circle is: Circumference=2πr.
The radius is the length of the leash: 12
The equation you would have to follow is: C=2π(12) or C=2(3.14)(12)
The correct answer is: A.)74.5 feet.
Ella walked 74.5 feet