| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 124 (83%) | 2008-12-27 |
| Complementary Angles 2 | easy | 122 (82%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 117 (79%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 118 (79%) | 2008-12-27 |
| Straight Angle 1 | easy | 106 (71%) | 2008-12-24 |
| Vertical Angles 1 | medium | 110 (74%) | 2008-12-27 |
| Parallel Lines 1 | easy | 105 (70%) | 2008-12-27 |
| Parallel Lines 2 | easy | 101 (68%) | 2008-12-27 |
| Parallel Lines 3 | easy | 101 (68%) | 2008-12-27 |
| Parallel Lines 4 | hard | 80 (54%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 100 (67%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 99 (66%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 83 (56%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 48 (32%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 71 (48%) | 2008-12-28 |
| Parallelogram 1 | easy | 93 (62%) | 2008-12-29 |
| Parallelogram 2 | easy | 95 (64%) | 2008-12-29 |
| Parallelogram 3 | medium | 88 (59%) | 2008-12-29 |
| Parallelogram 4 | easy | 84 (56%) | 2008-12-29 |
| Parallelogram 5 | hard | 60 (40%) | 2008-12-29 |
| Parallelogram 6 | easy | 79 (53%) | 2008-12-29 |
| Parallelogram 7 | medium | 74 (50%) | 2008-12-29 |
| Parallelogram 8 | hard | 48 (32%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 83 (56%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 66 (44%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 68 (46%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 86 (58%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 80 (54%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 52 (35%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 73 (49%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 71 (48%) | 2009-01-18 |
| Similar Triangles 1 | easy | 88 (59%) | 2009-02-08 |
| Similar Triangles 2 | easy | 82 (55%) | 2009-02-08 |
| Similar Triangles 3 | medium | 59 (40%) | 2009-02-08 |
| Similar Triangles 4 | hard | 40 (27%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 81 (54%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 70 (47%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 55 (37%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 36 (24%) | 2009-02-08 |