Answer:
RT, then TI, then IR.
Explanation:
The 108° is on the same line as an angle in RIT, so, since 108° plus that angle should equal 180°, the angle is 72°. You then have 2 of the triangle's 3 sides, and since all of a triangle's angles should equal 180°, you can subtract in order to find that it is 113°, I think. Then you go off of the bigger angle means a bigger opposite side thing again.