Let the sphere have radius $r$.  A sphere with radius $r$ has surface area $4\pi r^2$, so we have \[4\pi r^2 = 196\pi.\] Dividing both sides by $4\pi$ yields $r^2 = 49$; taking the square root of both sides and keeping the positive solution yields $r=7$ inches.

A great circle of a sphere is the circular cross-section of the sphere that passes through the sphere's center, which, in this case, is a circle with radius 7.  The circumference of this circle is $2\pi\cdot 7 = \boxed{14\pi}$ inches.
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.
{'answer': '14\\pi', 'subject': 'Geometry', 'level': 2, 'unique_id': 'test/geometry/658.json'}