| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Congruent Triangles 1 | easy | 453 (78%) | 2010-11-16 |
| Congruent Triangles 2 | easy | 474 (81%) | 2010-11-16 |
| Congruent Triangles 3 | easy | 345 (59%) | 2010-11-16 |
| Congruent Triangles 4 | medium | 256 (44%) | 2010-11-16 |
| Congruent Triangles 5 | medium | 208 (36%) | 2010-11-16 |
| Congruent Triangles 6 | medium | 188 (32%) | 2010-11-16 |
| Congruent Triangles 7 | hard | 157 (27%) | 2010-11-16 |
| Congruent Triangles 8 | hard | 181 (31%) | 2010-11-16 |