| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 292 (72%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 314 (78%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 242 (60%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 154 (38%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 140 (35%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 122 (30%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 93 (23%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 102 (25%) | 2010-11-16 |