| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 499 (78%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 521 (82%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 379 (59%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 269 (42%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 234 (37%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 199 (31%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 163 (26%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 199 (31%) | 2010-11-16 |