| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 212 (79%) | 2008-12-27 |
| Complementary Angles 2 | easy | 209 (77%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 190 (70%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 169 (63%) | 2008-12-27 |
| Straight Angle 1 | easy | 48 (18%) | 2008-12-24 |
| Vertical Angles 1 | medium | 37 (14%) | 2008-12-27 |
| Parallel Lines 1 | easy | 42 (16%) | 2008-12-27 |
| Parallel Lines 2 | easy | 36 (13%) | 2008-12-27 |
| Parallel Lines 3 | easy | 37 (14%) | 2008-12-27 |
| Parallel Lines 4 | hard | 43 (16%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 35 (13%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 28 (10%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 23 (09%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 13 (05%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 17 (06%) | 2008-12-28 |
| Parallelogram 1 | easy | 28 (10%) | 2008-12-29 |
| Parallelogram 2 | easy | 23 (09%) | 2008-12-29 |
| Parallelogram 3 | medium | 20 (07%) | 2008-12-29 |
| Parallelogram 4 | easy | 18 (07%) | 2008-12-29 |
| Parallelogram 5 | hard | 18 (07%) | 2008-12-29 |
| Parallelogram 6 | easy | 16 (06%) | 2008-12-29 |
| Parallelogram 7 | medium | 18 (07%) | 2008-12-29 |
| Parallelogram 8 | hard | 14 (05%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 15 (06%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 12 (04%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 13 (05%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 44 (16%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 25 (09%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 21 (08%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 17 (06%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 13 (05%) | 2009-01-18 |
| Similar Triangles 1 | easy | 18 (07%) | 2009-02-08 |
| Similar Triangles 2 | easy | 7 (03%) | 2009-02-08 |
| Similar Triangles 3 | medium | 6 (02%) | 2009-02-08 |
| Similar Triangles 4 | hard | 3 (01%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 22 (08%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 19 (07%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 16 (06%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 11 (04%) | 2009-02-08 |