The figure below shows segments PQ and RS which intersect at point t. Segment PR is parallel to segment SQ.
Which of these facts is used to prove that triangle PTR is stimilar to triangle QTS?
A) Line Segment RT Is Congruent To Line Segment TP
B) Line Segment ST Is Congruent To Line Segment TQ
C) Angle PTR Is Congruent To Angle QTS
D) Angle PRT Is Congruent To Angle QTS
