Given: ∠xwu ≅ ∠zvt; ∠ztv ≅ ∠xuw; tu ≅ vw

triangles z v t and x w u overlap and intersect at point y. angles z t u and w u w are congruent. angles z v t and x w u are congruent. lines segment t u and v w are congruent. a line is drawn through point y to point s on side x w and to point r on side z t. another line connects points z and x.

which relationship in the diagram is true?

△xyz ≅ △xys by sss
△zyx ≅ △vyu by aas
△ryz ≅ △xzy by sas
△zvt ≅ △xwu by asa