1. Section 4.5:Using Congruent Triangles Goals • Use congruent ’s to prove other parts are congruent. • Use congruent ’s to prove other geometric properties. Anchors • Identify and/or use properties of congruent and similar polygons • Identify and/or use properties of triangles

2. Statements Reasons Given: W is the midpoint of QS PQ  TS and PW  TWProve: PWQ  TWS

3. Statements Reasons Given: QRS is isosceles RT bisects QRSProve: QT  ST

4. Statements Reasons Given: B  N RW bisects BNProve: O is the midpoint of RW

5. Statements Reasons Given: BN and RW bisect each otherProve: BR ║ WN

6. 2 4 3 1 Statements Reasons Given: 1  2 , FC bisects DCBProve: AFB  EFD