Congruence

Progress
Transformations and congruence
Triangle congruence
Theorems concerning triangle properties
Working with triangles
Theorems concerning quadrilateral properties
Proofs of general theorems that use triangle congruence
Unit test
10 questions
1Take the unit test to identify your areas for growth.
2Review the recommended lessons.
3Test yourself again to show your growth.
Lessons
Transformations and congruenceTriangle congruenceTheorems concerning triangle propertiesWorking with trianglesTheorems concerning quadrilateral propertiesProofs of general theorems that use triangle congruenceUnit test
Transformations and congruence
Learn
Congruent shapes & transformations
Non-congruent shapes & transformations
Performing sequences of transformations
Determining mappings (incl. dilations)
Practice
Congruence & transformations
4 questions
Practice
Determine mappings
4 questions
Practice
Triangle congruence
Learn
Congruent triangles & the SSS postulate/criterion
Triangle congruence postulates/criteria
Why SSA isn't a congruence postulate/criterion
Determining congruent triangles
Triangle congruence review
Practice
Determine congruent triangles
7 questions
Practice
Theorems concerning triangle properties
Learn
Angles in a triangle sum to 180° proof
Proofs concerning isosceles triangles
Proofs concerning equilateral triangles
Working with triangles
Learn
Corresponding angles in congruent triangles
Isosceles & equilateral triangles problems
Finding angles in isosceles triangles
Finding angles in isosceles triangles (example 2)
Practice
Find angles in congruent triangles
4 questions
Practice
Find angles in isosceles triangles
4 questions
Practice
Theorems concerning quadrilateral properties
Learn
Proof: Opposite sides of a parallelogram
Proof: Diagonals of a parallelogram
Proof: Opposite angles of a parallelogram
Proof: The diagonals of a kite are perpendicular
Proof: Rhombus diagonals are perpendicular bisectors
Proof: Rhombus area
Proofs of general theorems that use triangle congruence
Learn
Geometry proof problem: midpoint
Geometry proof problem: congruent segments
Geometry proof problem: squared circle
Unit test
Test your understanding of Congruence with these 10 questions.

It takes about 15 to 20 minutes to finish this test.