Answer:
x=12
Explanation:
- Arc ST measures 26 so that means it central angle measure 26.
- Since all radius are equal, Angle RVU also equal 26 since it a vertical angle.
- RV=VT and UV=US so that any angle those four segment forms will be vertical angle since all radius are equal.
- E.x(Angle RVS and UVT.
Since we know two arcs measure already,


Then since those are vertical angles, just divide 308 by 2

Set 15x-26=154


