| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 133 (82%) | 2008-12-27 |
| Complementary Angles 2 | easy | 133 (82%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 127 (78%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 125 (77%) | 2008-12-27 |
| Straight Angle 1 | easy | 115 (71%) | 2008-12-24 |
| Vertical Angles 1 | medium | 118 (72%) | 2008-12-27 |
| Parallel Lines 1 | easy | 108 (66%) | 2008-12-27 |
| Parallel Lines 2 | easy | 104 (64%) | 2008-12-27 |
| Parallel Lines 3 | easy | 104 (64%) | 2008-12-27 |
| Parallel Lines 4 | hard | 85 (52%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 103 (63%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 101 (62%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 85 (52%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 50 (31%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 72 (44%) | 2008-12-28 |
| Parallelogram 1 | easy | 96 (59%) | 2008-12-29 |
| Parallelogram 2 | easy | 98 (60%) | 2008-12-29 |
| Parallelogram 3 | medium | 90 (55%) | 2008-12-29 |
| Parallelogram 4 | easy | 86 (53%) | 2008-12-29 |
| Parallelogram 5 | hard | 62 (38%) | 2008-12-29 |
| Parallelogram 6 | easy | 82 (50%) | 2008-12-29 |
| Parallelogram 7 | medium | 76 (47%) | 2008-12-29 |
| Parallelogram 8 | hard | 49 (30%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 85 (52%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 67 (41%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 69 (42%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 88 (54%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 82 (50%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 54 (33%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 75 (46%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 72 (44%) | 2009-01-18 |
| Similar Triangles 1 | easy | 89 (55%) | 2009-02-08 |
| Similar Triangles 2 | easy | 83 (51%) | 2009-02-08 |
| Similar Triangles 3 | medium | 60 (37%) | 2009-02-08 |
| Similar Triangles 4 | hard | 41 (25%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 82 (50%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 73 (45%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 56 (34%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 37 (23%) | 2009-02-08 |