Answer:
C; 40.82
Step-by-step explanation:
First we know that the formula to find the circumference of a circle is 2πr, with r being the radius and assuming that π is equal to 3.14. And, we understand that the radius is half the diameter, which would 6.5. Therefore, we can set up the following equation: (2)(3.14)(6.5) = 40.82. So, the only logical answer would be 40.82 centimetres.
