## Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.

12 Lesson(s)

### Discovering Triangle Congruence Shortcuts

Geometry » Unit: Discovering and Proving Triangle Properties
Geometry » Unit: Discovering and Proving Triangle Properties
Sunnyvale, CA
Environment: Suburban

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Favorites (15)

Resources (14)

Reflections (1)

### Tremendous Triangles Projects

Geometry » Unit: Tremendous Triangles
Geometry » Unit: Tremendous Triangles
Saratoga Springs, NY
Environment: Suburban

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Favorites (9)

Resources (12)

Reflections (1)

### Angle-Side-Angle

Geometry » Unit: Proofs about Triangles
Geometry » Unit: Proofs about Triangles
New York, NY
Environment: Urban

Big Idea:

#### Students will write formal proofs showing how triangles are congruent when two corresponding angles and the included side are congruent.

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Favorites (3)

Resources (18)

Reflections (1)

Geometry » Unit: Rigid Motions
New York, NY
Environment: Urban

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Favorites (12)

Resources (20)

Reflections (1)

### Fall Interim Assessment

Geometry » Unit: Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion
Geometry » Unit: Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion
New York, NY
Environment: Urban

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Favorites (4)

Resources (6)

Reflections (1)

### Rigid Motion, Congruent Triangles, and Proof

Geometry » Unit: Polygons and Congruent Triangle Proofs
Geometry » Unit: Polygons and Congruent Triangle Proofs
Amsterdam, NY
Environment: Urban

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Favorites (3)

Resources (14)

Reflections (1)

### AAS and ASA Fun

Geometry » Unit: Tremendous Triangles
Geometry » Unit: Tremendous Triangles
Saratoga Springs, NY
Environment: Suburban

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Favorites (4)

Resources (22)

Reflections (2)

### Side-Side-Side

Geometry » Unit: Proofs about Triangles
Geometry » Unit: Proofs about Triangles
New York, NY
Environment: Urban

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Resources (13)

### End of Year Assessment

Geometry » Unit: Final Assessment
Geometry » Unit: Final Assessment
New York, NY
Environment: Urban

Big Idea:

#### This is a comprehensive assessment of all content learned to date.

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Favorites (1)

Resources (12)

Reflections (1)

Geometry » Unit: Final Assessment
New York, NY
Environment: Urban

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Favorites (1)

Resources (9)

### Analyzing the Symmetry of a Polygon

Geometry » Unit: Congruence and Rigid Motions
Geometry » Unit: Congruence and Rigid Motions
Ault, CO
Environment: Rural

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Favorites (2)

Resources (27)

Reflections (1)

### Quadrilaterals Transfer Task

Geometry » Unit: Quadrilaterals
Geometry » Unit: Quadrilaterals
Pasadena, CA
Environment: Suburban

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Resources (5)
Common Core Math

### High School

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