Download 4.3: Congruent Triangle

Warm Up
1. Name all sides and angles of ∆FGH.
2. What is true about K and L? Why?
3. What does it mean for two segments to be
congruent?
4.3: Congruent Triangle
Objectives:
• To apply properties of congruent
triangles.
• To prove triangles congruent by using
the definition of congruence.
Supplies:
 Vocabulary notebook
 notes
4.3: Congruent Triangle
Corresponding Corresponding
Angles
Sides
Diagram
B
C
D
A
F
E
4.3: Congruent Triangle
page. 9
Consecutive
Vertices
4.3: Congruent Triangle
Identify all pairs of corresponding
congruent parts,
Given: PQR  STW
4.3: Congruent Triangle
If ABC  DBC, find the measure
of each angle.
Given: YWX & YWZ are right s
YW bisects XYZ
W is the midpoint of XZ
XY  YZ
Prove: XYZ  ZYW
Statements
Reasons
Given: AD bisects BE
BE bisects AD
AB  DE, A  D
Prove: ABC  DEC
Statements
Reasons
4.3: Assignment
p. 234: 1-11, 13-20