| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 571 (79%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 599 (82%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 420 (58%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 311 (43%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 263 (36%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 228 (31%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 190 (26%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 234 (32%) | 2010-11-16 |