9514 1404 393
Answer:
Step-by-step explanation:
The two triangles share a side, so that side will be both corresponding (to itself) and congruent (to itself). The two marked sides are congruent, as are the angles at the point of intersection (T) between the shared side and the marked sides.
So, we have congruent sides with a congruent angle between them. The SAS theorem applies to this situation. As we noted, side RT corresponds to itself. The third vertices of each triangle also correspond, so the congruence statement can be written ...
ΔRTS ≅ RTU
