| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 104 (81%) | 2008-12-27 |
| Complementary Angles 2 | easy | 101 (79%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 94 (73%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 79 (62%) | 2008-12-27 |
| Straight Angle 1 | easy | 81 (63%) | 2008-12-24 |
| Vertical Angles 1 | medium | 78 (61%) | 2008-12-27 |
| Parallel Lines 1 | easy | 82 (64%) | 2008-12-27 |
| Parallel Lines 2 | easy | 80 (63%) | 2008-12-27 |
| Parallel Lines 3 | easy | 79 (62%) | 2008-12-27 |
| Parallel Lines 4 | hard | 64 (50%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 75 (59%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 64 (50%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 56 (44%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 34 (27%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 49 (38%) | 2008-12-28 |
| Parallelogram 1 | easy | 67 (52%) | 2008-12-29 |
| Parallelogram 2 | easy | 63 (49%) | 2008-12-29 |
| Parallelogram 3 | medium | 55 (43%) | 2008-12-29 |
| Parallelogram 4 | easy | 58 (45%) | 2008-12-29 |
| Parallelogram 5 | hard | 44 (34%) | 2008-12-29 |
| Parallelogram 6 | easy | 58 (45%) | 2008-12-29 |
| Parallelogram 7 | medium | 50 (39%) | 2008-12-29 |
| Parallelogram 8 | hard | 39 (30%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 46 (36%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 40 (31%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 39 (30%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 46 (36%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 42 (33%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 41 (32%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 47 (37%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 46 (36%) | 2009-01-18 |
| Similar Triangles 1 | easy | 52 (41%) | 2009-02-08 |
| Similar Triangles 2 | easy | 46 (36%) | 2009-02-08 |
| Similar Triangles 3 | medium | 41 (32%) | 2009-02-08 |
| Similar Triangles 4 | hard | 38 (30%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 49 (38%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 42 (33%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 41 (32%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 36 (28%) | 2009-02-08 |