| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 450 (78%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 469 (81%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 341 (59%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 253 (44%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 205 (36%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 185 (32%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 156 (27%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 179 (31%) | 2010-11-16 |