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 here goes by Steve Royer)

"You now have 2 right triangles,
1 with hypotenuse of 2, the other with hypotenuse of 11.
Use pythagorean theorem to get the unknown length of the
rectangle. "

How do you do this step? You have one rt triangle whose hypotenuse is 2 and another with hypotenuse 11 and they share a common leg.  How does this tell you about the total of their non-common legs?

Posted by Charlie on 2004-06-04 21:13:03