| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 458 (76%) | 2008-12-27 |
| Complementary Angles 2 | easy | 332 (55%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 400 (66%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 267 (44%) | 2008-12-27 |
| Straight Angle 1 | easy | 273 (45%) | 2008-12-24 |
| Vertical Angles 1 | medium | 225 (37%) | 2008-12-27 |
| Parallel Lines 1 | easy | 316 (52%) | 2008-12-27 |
| Parallel Lines 2 | easy | 298 (49%) | 2008-12-27 |
| Parallel Lines 3 | easy | 318 (53%) | 2008-12-27 |
| Parallel Lines 4 | hard | 203 (34%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 265 (44%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 195 (32%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 154 (25%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 86 (14%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 123 (20%) | 2008-12-28 |
| Parallelogram 1 | easy | 135 (22%) | 2008-12-29 |
| Parallelogram 2 | easy | 125 (21%) | 2008-12-29 |
| Parallelogram 3 | medium | 113 (19%) | 2008-12-29 |
| Parallelogram 4 | easy | 118 (20%) | 2008-12-29 |
| Parallelogram 5 | hard | 104 (17%) | 2008-12-29 |
| Parallelogram 6 | easy | 112 (19%) | 2008-12-29 |
| Parallelogram 7 | medium | 102 (17%) | 2008-12-29 |
| Parallelogram 8 | hard | 91 (15%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 88 (15%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 76 (13%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 77 (13%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 112 (19%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 93 (15%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 92 (15%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 100 (17%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 93 (15%) | 2009-01-18 |
| Similar Triangles 1 | easy | 114 (19%) | 2009-02-08 |
| Similar Triangles 2 | easy | 88 (15%) | 2009-02-08 |
| Similar Triangles 3 | medium | 74 (12%) | 2009-02-08 |
| Similar Triangles 4 | hard | 60 (10%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 147 (24%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 136 (23%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 130 (22%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 92 (15%) | 2009-02-08 |