1. /TVS and RSV are right angles (given)
2. ZTVS RVS (Right Z Thm.)
3. Vis midpoint of TR (given)
4. TV VR (Def. of bisector)
5. TSRS (given)
6. VS bisects ZRST (given)
7. ZVRS≈ /TSV (Def. of midpoint)
B
8. VS SV (Reflex. Prop. of)
9. /T≈ ZR (Third angles Thm.)
10. ATSVA RSV (Def. of congruent triangles)

1 TVS and RSV are right angles given 2 ZTVS RVS Right Z Thm 3 Vis midpoint of TR given 4 TV VR Def of bisector 5 TSRS given 6 VS bisects ZRST given 7 ZVRS TSV D class=