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Interactive Notebook Entries pg. 15 4-3:Congruent Triangles pg. 16 4-3 Practice

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## Interactive Notebook Entries pg. 15 4-3:Congruent Triangles pg. 16 4-3 Practice

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**Interactive Notebook Entries pg. 15 4-3:Congruent**Trianglespg. 16 4-3 Practice**4.3 Congruent Triangles**Objectives: …name and label corresponding parts of congruent triangles. …identify congruence transformations.**Corresponding Parts of Congruent Triangles are Congruent**(CPCTC) Two triangles are congruent if and only if their corresponding parts are congruent. Triangles that are the same size and shape are congruent triangles.**B**Y Z C X A Corresponding parts of congruent triangles Name all the corresponding parts of ABC and XYZ.**B**E C F A D IDENTIFY CONGRUENCE TRANSFORMATIONS If you slide ΔABC down and to the right, it is still congruent to ΔDEF. B C A**B**E C F A D IDENTIFY CONGRUENCE TRANSFORMATIONS If you turn ΔABC, it is still congruent to ΔDEF. A B C**B**E C F A D IDENTIFY CONGRUENCE TRANSFORMATIONS If you flip ΔABC, it is still congruent to ΔDEF. A C B**COORDINATE GEOMETRYThe vertices of RSTare R(─3, 0),**S(0, 5), and T(1, 1). The vertices of RSTare R(3, 0), S(0, ─5), and T(─1, ─1). Verify that RST RST. Example 3-2a**Example 3-2b**Use the Distance Formula to find the length of each side of the triangles.**Example 3-2b**Use the Distance Formula to find the length of each side of the triangles.**Example 3-2b**Use the Distance Formula to find the length of each side of the triangles.**a. Verify that ABC ABC.**Example 3-2f COORDINATE GEOMETRYThe vertices of ABC are A(–5, 5), B(0, 3), and C(–4, 1). The vertices of ABCare A(5, –5), B(0, –3), and C(4, –1). Answer:**Example 3-2g**b.Name the congruence transformation for ABC and ABC. Answer:turn