How many inches are in the circumference of a great circle of a sphere which has surface area of $196\pi$ sq in? Express your answer in terms of $\pi$.

Note: To measure the circumference, take the largest circle on the surface of the sphere.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many inches are in the circumference of a great circle of a sphere which has surface area of $196\pi$ sq in? Express your answer in terms of $\pi$.

Note: To measure the circumference, take the largest circle on the surface of the sphere.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
14\pi
How many inches are in the circumference of a great circle of a sphere which has surface area of $196\pi$ sq in? Express your answer in terms of $\pi$.

Note: To measure the circumference, take the largest circle on the surface of the sphere.
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