1. the third angles are congruent C F Polygons that have congruent corresponding parts. That is, corresponding vertices, angles, and sides are congruent. DEF GHI Find these definitions on page 198 and fill them out in your notes.

2. TC BC QJ

3. 180 48 m<M 48 67 115 65

4.  We are able to conclude that two triangles are congruent if their corresponding sides and corresponding angles are congruent to each other.

5. <DEC <DCE Is NOT DC DE EC <CDE <DEC <ACB ABCEDC

6. Given Reflexive Given Definition of perpendicular lines. All right angles congruent. <CGN congruent to <DGN congruent. 4-1 congruent.

7. Given <ABE congruent to <DBC Theorem 4-1 – If 2 angles are congruent in 2 triangles, then their 3 rd angles are congruent. Given Definition of congruent triangles

10.  Geometry 1 st and 3 rd period  Practice 4.1, pg. 201, 16, 18, 32, 34  Honors Geometry 5 th period  Practice 4.1, pg 201, 16, 18, 32, 34, 44