| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 381 (66%) | 2008-12-27 |
| Complementary Angles 2 | easy | 372 (64%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 347 (60%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 294 (51%) | 2008-12-27 |
| Straight Angle 1 | easy | 178 (31%) | 2008-12-24 |
| Vertical Angles 1 | medium | 148 (26%) | 2008-12-27 |
| Parallel Lines 1 | easy | 177 (31%) | 2008-12-27 |
| Parallel Lines 2 | easy | 169 (29%) | 2008-12-27 |
| Parallel Lines 3 | easy | 163 (28%) | 2008-12-27 |
| Parallel Lines 4 | hard | 135 (23%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 159 (27%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 128 (22%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 99 (17%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 45 (08%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 84 (15%) | 2008-12-28 |
| Parallelogram 1 | easy | 119 (21%) | 2008-12-29 |
| Parallelogram 2 | easy | 110 (19%) | 2008-12-29 |
| Parallelogram 3 | medium | 103 (18%) | 2008-12-29 |
| Parallelogram 4 | easy | 74 (13%) | 2008-12-29 |
| Parallelogram 5 | hard | 84 (15%) | 2008-12-29 |
| Parallelogram 6 | easy | 69 (12%) | 2008-12-29 |
| Parallelogram 7 | medium | 96 (17%) | 2008-12-29 |
| Parallelogram 8 | hard | 73 (13%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 111 (19%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 105 (18%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 96 (17%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 118 (20%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 99 (17%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 106 (18%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 62 (11%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 53 (09%) | 2009-01-18 |
| Similar Triangles 1 | easy | 175 (30%) | 2009-02-08 |
| Similar Triangles 2 | easy | 143 (25%) | 2009-02-08 |
| Similar Triangles 3 | medium | 120 (21%) | 2009-02-08 |
| Similar Triangles 4 | hard | 81 (14%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 81 (14%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 70 (12%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 87 (15%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 52 (09%) | 2009-02-08 |