| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 704 (74%) | 2008-12-27 |
| Complementary Angles 2 | easy | 560 (59%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 685 (72%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 423 (45%) | 2008-12-27 |
| Straight Angle 1 | easy | 466 (49%) | 2008-12-24 |
| Vertical Angles 1 | medium | 340 (36%) | 2008-12-27 |
| Parallel Lines 1 | easy | 482 (51%) | 2008-12-27 |
| Parallel Lines 2 | easy | 457 (48%) | 2008-12-27 |
| Parallel Lines 3 | easy | 507 (54%) | 2008-12-27 |
| Parallel Lines 4 | hard | 240 (25%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 407 (43%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 238 (25%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 202 (21%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 99 (10%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 155 (16%) | 2008-12-28 |
| Parallelogram 1 | easy | 210 (22%) | 2008-12-29 |
| Parallelogram 2 | easy | 196 (21%) | 2008-12-29 |
| Parallelogram 3 | medium | 143 (15%) | 2008-12-29 |
| Parallelogram 4 | easy | 168 (18%) | 2008-12-29 |
| Parallelogram 5 | hard | 96 (10%) | 2008-12-29 |
| Parallelogram 6 | easy | 146 (15%) | 2008-12-29 |
| Parallelogram 7 | medium | 111 (12%) | 2008-12-29 |
| Parallelogram 8 | hard | 72 (08%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 112 (12%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 100 (11%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 96 (10%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 180 (19%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 109 (12%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 89 (09%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 148 (16%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 110 (12%) | 2009-01-18 |
| Similar Triangles 1 | easy | 147 (16%) | 2009-02-08 |
| Similar Triangles 2 | easy | 109 (12%) | 2009-02-08 |
| Similar Triangles 3 | medium | 71 (08%) | 2009-02-08 |
| Similar Triangles 4 | hard | 65 (07%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 193 (20%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 147 (16%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 100 (11%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 77 (08%) | 2009-02-08 |