1. The side of the triangle must be 8 if the area is 60 and the other side is 15.

2. Drew in all the congruent segments and connected them to the origin of the circle.

3. Set x equal to one of the missing pieces on the side with 15 and x+7 on the side with 8.

4. Went wait a minute that drawing is totally out of scale the 15cm side is the longer of the 2 and redrew everything (not necc. but it totally stuck out.)

5. Used the Pythagorean theorem to get the hypotenuse was 17 in length.

6. Then x + (x + 7) = 17 or x = 5.

7. The radius of the circle is x + 15 or 20 and therefore is 400 pi.