| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 400 (77%) | 2008-12-27 |
| Complementary Angles 2 | easy | 279 (54%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 351 (68%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 225 (43%) | 2008-12-27 |
| Straight Angle 1 | easy | 230 (44%) | 2008-12-24 |
| Vertical Angles 1 | medium | 187 (36%) | 2008-12-27 |
| Parallel Lines 1 | easy | 272 (53%) | 2008-12-27 |
| Parallel Lines 2 | easy | 254 (49%) | 2008-12-27 |
| Parallel Lines 3 | easy | 273 (53%) | 2008-12-27 |
| Parallel Lines 4 | hard | 170 (33%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 223 (43%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 159 (31%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 127 (25%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 74 (14%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 107 (21%) | 2008-12-28 |
| Parallelogram 1 | easy | 109 (21%) | 2008-12-29 |
| Parallelogram 2 | easy | 102 (20%) | 2008-12-29 |
| Parallelogram 3 | medium | 98 (19%) | 2008-12-29 |
| Parallelogram 4 | easy | 101 (19%) | 2008-12-29 |
| Parallelogram 5 | hard | 92 (18%) | 2008-12-29 |
| Parallelogram 6 | easy | 95 (18%) | 2008-12-29 |
| Parallelogram 7 | medium | 88 (17%) | 2008-12-29 |
| Parallelogram 8 | hard | 78 (15%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 77 (15%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 66 (13%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 67 (13%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 96 (19%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 80 (15%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 78 (15%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 85 (16%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 83 (16%) | 2009-01-18 |
| Similar Triangles 1 | easy | 101 (19%) | 2009-02-08 |
| Similar Triangles 2 | easy | 82 (16%) | 2009-02-08 |
| Similar Triangles 3 | medium | 69 (13%) | 2009-02-08 |
| Similar Triangles 4 | hard | 55 (11%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 125 (24%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 120 (23%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 113 (22%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 82 (16%) | 2009-02-08 |