A hexagon with sides of length 2, 7, 2, 11, 7, 11 is inscribed in a circle. Find the radius of the circle.
As suggested, *if* it matters, you may assume that the sides listed are given in order
(In reply to How Simple is it?
I also hate to point out the obvious.
inscribed (from http://www.dictionary.com):
Mathematics. To draw (one figure) within another figure so that every vertex of the enclosed figure touches the outer figure.
to draw within a figure so as to touch in as many places as possible <a regular polygon inscribed in a circle>