| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 598 (79%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 627 (83%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 443 (58%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 328 (43%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 281 (37%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 245 (32%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 203 (27%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 250 (33%) | 2010-11-16 |