4.2 sss, sas, asa.notebook - images.pcmac.org
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4.2 SSS, SAS, ASA.notebook
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Warm Up
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http://cpm.org/technology/geometry/
Proving Triangle Congruence: SSS, SAS and ASA
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A
B
CD
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The common side of two triangles is always congruent. Reason: Reflexive property.
State if the two triangles are congruent.
Ex 1:Statements Reasons
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Flowchart:
Ex 2:
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Find congruent angles, then state if the triangles are congruent.
1. A
BC D
E
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2.
A
B
C
D
E
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3.A
B
C
D
E
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1. 2.
3.
1 2
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Find congruent angles, then state if the triangles are congruent.
A
B C
DA
B
D
C
A
B C
D