Hello! Hope this helps :)
Here is the equation for Circumference.
Circumference = 2 * pi * radius
The problem gives you the diameter of AB = 14 inches. The radius of the circle is half of the diameter:
Radius = (1/2) * Diameter
Radius = (1/2) * 14 inches
Radius = 7 inches
Now plug radius into the circumference equation:
Circumference = 2 * pi * 7 inches
Circumference = 14pi inches
(Leave in terms of pi)
Let me know if you have any questions :). Please give me a rating!
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