Theory
Exercises
1. 
Determine the corresponding vertices and sides
Difficulty: easy 
3

2. 
Calculate the unknown value
Difficulty: easy 
2

3. 
Test the congruency and find corresponding vertices
Difficulty: medium 
4

4. 
Examine congruency and find the interior angle
Difficulty: medium 
4

5. 
Write the symbolic form of congruence for the triangles
Difficulty: hard 
4

6. 
Solve and find the unknown values
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: medium 
8
