Given: ST | RU; SR | ITU
(16 PL)
Prove: SRT = 4 UTR'
Proof
Statement 1: ST | RU
Reasoning
2) If lines intersect, alternate interior angles are congruent.
Statement 2: SR | ITU
Reasoning
3) If lines intersect, corresponding angles are congruent.
Statement 3: LSRT = LUTR