geom Section 4.4 Using Corresponding Parts of Congruent Triangles.notebook
11/2/16 ­ Warm Up
x
Find the measure of the variables.
w =
x =
y =
z =
135
November 02, 2016
w
35
75 y
z
geom Section 4.4 Using Corresponding Parts of Congruent Triangles.notebook
November 02, 2016
Section 4.4 Corresponding Parts of Congruent Triangles
Goal: use triangle congruence and corresponding parts of congruent triangles to prove that parts of two triangles are congruent
Using Corresponding Parts
12
9
72o
53o
If ΔJCR ≅ ΔHGV, then...
Angle J = GV = 14
CPCTC
Corresponding Parts of Congruent Triangles are Congruent
geom Section 4.4 Using Corresponding Parts of Congruent Triangles.notebook
November 02, 2016
Using CPCTC
‐ you must first prove that the triangles are congruent
Given: ZW ≅ YX and <ZWX ≅ <YXW
Prove: <Z ≅ <Y
Statements
Reasons
geom Section 4.4 Using Corresponding Parts of Congruent Triangles.notebook
Example: Write this proof in your notes
Statements
Reasons
November 02, 2016