Download A. Given Statements

Notes – Lesson 4.2-4.3 (Part 2)
Geometry
Name ________________________________________
Proofs:
I. What do you look for???
A. Given Statements
1. Given: parallel lines: (line KJ || GH, KG || JH) OR (line m || n)
alternate interior angles _________________________
corresponding angles __________________________
2. Given: something bisects something.
BD bisects
 ABC _____________________
BD bisects AC _____________________
3. Given: D is the midpoint of AC _____________________
4. Given: BD is perpendicular to AC ________________________
B. Given information in the picture.
1. vertical angles ____________________
2. reflexive side(s) _____________________
3. Draw in all tick marks
II.
To prove triangles congruent, I must get:
A. three sides congruent _______________
B. two sides and the included angle congruent _______________
C. two angles and the included side congruent ________________
D. two angles and a side congruent _______________
III. Proofs.
Given: AE = XE
<B = <Y
Prove:  ABE =  XYE
Given: AB = DC
 BAC =  DCA
Prove:  ABC =  CDA
Given:
B = E
BA = ED
BA  AC
ED  FD
Prove:  ABC =  DEF