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Lesson 4-3: SSS, SAS, ASA*Lesson 4-3Proving Triangles
Congruent(SSS, SAS, ASA)
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*PostulatesSSSIf the sides of one
triangle are congruent to the sides of a second triangle, then the
triangles are congruent.Included Angle:In a triangle, the angle
formed by two sides is the included angle for the two
sides.Included Side:The side of a triangle that forms a side of two
given angles.
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*Included Angles & Sides Included
Angle:Included Side:***
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*PostulatesASAIf two angles and the
included side of one triangle are congruent to the two angles and
the included side of another triangle, then the triangles are
congruent.SASIf two sides and the included angle of one triangle
are congruent to the two sides and the included angle of another
triangle, then the triangles are congruent.
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*Steps for Proving Triangles
CongruentMark the Given.
Mark Reflexive Sides / Vertical Angles
Choose a Method. (SSS , SAS, ASA)
List the Parts in the order of the method.
Fill in the Reasons why you marked the parts.
Is there more?
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*Problem 1 Step 1: Mark the Given Step
2: Mark reflexive sidesStep 3: Choose a Method (SSS /SAS/ASA )Step
4: List the Parts in the order of the methodStep 5: Fill in the
reasonsStep 6: Is there more?SSSGivenGivenReflexive PropertySSS
Postulate
StatementsReasons
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*Problem 2 Step 1: Mark the Given Step
2: Mark vertical anglesStep 3: Choose a Method (SSS /SAS/ASA)Step
4: List the Parts in the order of the methodStep 5: Fill in the
reasonsStep 6: Is there more?SASGivenGivenVertical Angles.SAS
Postulate
StatementsReasons
Lesson 4-3: SSS, SAS, ASA
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Lesson 4-3: SSS, SAS, ASA*Problem 3Step 1: Mark the Given Step
2: Mark reflexive sidesStep 3: Choose a Method (SSS /SAS/ASA)Step
4: List the Parts in the order of the methodStep 5: Fill in the
reasonsStep 6: Is there more?ASAGivenGivenReflexive PostulateASA
Postulate
StatementsReasons
Lesson 4-3: SSS, SAS, ASA
