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### Congruence

 5.2.1 Angle Relationships: adjacent angles, angle addition postulate, linear pair, and vertical anglesExplanation:Khan video: Complementary & supplementary angles Khan video: Equation practice with complementary anglesKhan video: Equation practice with supplementary anglesKhan video: Vertical anglesKhan video: Equation practice with vertical anglesPractice Problems:Khan exercise: Complementary and supplementary angles (visual)Khan exercise: Equation practice with angle additionKhan exercise: Vertical angles (honors only)Khan exercise: Equation practice with vertical anglesWorksheet #1Worksheet #2ExamView Test Bank (purchase)Congruent PolygonsExplanation:Khan video: Corresponding angles in congruent trianglesPractice Problems:Congruent Triangles through transformationsExplanation:Khan video: Congruent shapes & transformationsKhan video: Non-congruent shapes & transformationsPractice Problems:Khan exercise: Congruence & transformations (honors)Khan exercise: Find angles in congruent trianglesWays to Prove Triangles Congruent:Explanation:Khan video: Triangle congruence postulates/criteriaKhan video: Why SSA isn't a congruence postulate/criterionKhan article: Triangle congruence reviewPractice Problems:Khan exercise: Determine congruent triangles