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Geometry Lesson 4.3.notebook
1
December 03, 2014
Bell Ringer
Find the measure of each numbered angle.
Geometry Lesson 4.3.notebook
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December 03, 2014
Congruent Triangles
If two geometric figures have the same shape and size, they are congruent.
In congruent polygons, all the parts of one polygon are congruent to the corresponding parts of the other polygon. These corresponding parts include corresponding angles and corresponding sides.
Corresponding Angles:
Corresponding Sides:
Congruence Statement:
INVALID STATEMENT: Because corresponding parts do not match.
Geometry Lesson 4.3.notebook
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December 03, 2014
Identify the corresponding congruent parts:
If two polygons are congruent, then their corresponding parts are congruent. For triangles we say Corresponding Parts of Congruent Triangles are Congruent, or to shorten it up, CPCTC.
Geometry Lesson 4.3.notebook
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December 03, 2014
Third Angle Theorem If two angles of one triangle are congruent to two angles of a second triangle, then the third angles are also congruent.
Geometry Lesson 4.3.notebook
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December 03, 2014
Given:
L bisects
Prove:
L bisects
Geometry Lesson 4.3.notebook
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December 03, 2014
Properties of Triangle Congruence
Reflexive Property
Symmetric Property
Transitive Property
P. 257 920, 23, 24, 2830
Geometry Lesson 4.3.notebook
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December 03, 2014
