Notes 3.1 Congruent Triangles.

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Presentation transcript:

Notes 3.1 Congruent Triangles

Triangles are congruent if… Corresponding sides are congruent Corresponding angles are congruent

CPCTC Corresponding Parts of Congruent Triangles are Congruent. Use CPCTC If two triangles are congruent and you need to give a reason for stating that their corresponding parts are congruent.

Given: ∆PQR  ∆STW Name the Corresponding Sides and Angles. P S T Q W

Given: ∆PQR  ∆STW (Reason is CPCTC) CAUTION Letters must match up EXACTLY!!! PS QT RW Q W R Angles ∠ P ≅ ∠ S ∠ Q ≅ ∠ T ∠ R ≅ ∠ W Sides PQ ≅ ST QR ≅ TW PR ≅ SW