| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 401 (67%) | 2008-12-27 |
| Complementary Angles 2 | easy | 391 (65%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 366 (61%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 309 (51%) | 2008-12-27 |
| Straight Angle 1 | easy | 193 (32%) | 2008-12-24 |
| Vertical Angles 1 | medium | 164 (27%) | 2008-12-27 |
| Parallel Lines 1 | easy | 191 (32%) | 2008-12-27 |
| Parallel Lines 2 | easy | 180 (30%) | 2008-12-27 |
| Parallel Lines 3 | easy | 175 (29%) | 2008-12-27 |
| Parallel Lines 4 | hard | 144 (24%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 168 (28%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 139 (23%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 108 (18%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 48 (08%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 94 (16%) | 2008-12-28 |
| Parallelogram 1 | easy | 128 (21%) | 2008-12-29 |
| Parallelogram 2 | easy | 117 (19%) | 2008-12-29 |
| Parallelogram 3 | medium | 111 (18%) | 2008-12-29 |
| Parallelogram 4 | easy | 84 (14%) | 2008-12-29 |
| Parallelogram 5 | hard | 90 (15%) | 2008-12-29 |
| Parallelogram 6 | easy | 77 (13%) | 2008-12-29 |
| Parallelogram 7 | medium | 102 (17%) | 2008-12-29 |
| Parallelogram 8 | hard | 79 (13%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 117 (19%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 112 (19%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 101 (17%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 127 (21%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 104 (17%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 110 (18%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 68 (11%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 59 (10%) | 2009-01-18 |
| Similar Triangles 1 | easy | 184 (31%) | 2009-02-08 |
| Similar Triangles 2 | easy | 149 (25%) | 2009-02-08 |
| Similar Triangles 3 | medium | 126 (21%) | 2009-02-08 |
| Similar Triangles 4 | hard | 84 (14%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 90 (15%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 79 (13%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 93 (15%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 54 (09%) | 2009-02-08 |