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# Module 2: The concept of congruence

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Introduction to geometric transformationsIdentifying transformationsTranslations introTranslating pointsTranslating shapesTranslating shapesDetermining translationsRotations introRotating pointsDetermining rotationsReflecting pointsReflecting shapesReflecting shapesDetermining reflectionsTranslations reviewRotations reviewReflections review

Practice

Identify transformations Get 3 of 4 questions to level up!

Translate pointsGet 3 of 4 questions to level up!

Translate shapesGet 3 of 4 questions to level up!

Determine translationsGet 3 of 4 questions to level up!

Rotate points (basic)Get 3 of 4 questions to level up!

Determine rotations (basic)Get 3 of 4 questions to level up!

Reflect pointsGet 3 of 4 questions to level up!

Reflect shapesGet 3 of 4 questions to level up!

Determine reflectionsGet 3 of 4 questions to level up!

Learn

Finding measures using rigid transformationsRigid transformations: preserved propertiesMapping shapesCongruent shapes & transformationsNon-congruent shapes & transformations

Practice

Find measures using rigid transformationsGet 3 of 4 questions to level up!

Rigid transformations: preserved propertiesGet 3 of 4 questions to level up!

Mapping shapesGet 3 of 4 questions to level up!

Congruence & transformationsGet 3 of 4 questions to level up!

Learn

Congruence and similarity — Basic exampleCongruence and similarity — Harder exampleAngles, parallel lines, & transversalsParallel & perpendicular linesMissing angles with a transversalMeasures of angles formed by a transversalAngles in a triangle sum to 180° proofTriangle exterior angle exampleWorked example: Triangle angles (intersecting lines)Worked example: Triangle angles (diagram) Triangle angle challenge problemTriangle angle challenge problem 2

Practice

Angle relationships with parallel linesGet 5 of 7 questions to level up!

Equation practice with anglesGet 3 of 4 questions to level up!

Find angles in trianglesGet 5 of 7 questions to level up!

Find angles in isosceles trianglesGet 3 of 4 questions to level up!

Finding angle measures between intersecting linesGet 3 of 4 questions to level up!

Finding angle measures using trianglesGet 5 of 7 questions to level up!

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