| Giver | Post | Date |
| jewelsch | Re: GRE Math Challenge #20- Geometry Triangle a + b or c + d | 10-Jan-2023 |
| COolguy101 | Re: GRE Math Challenge #20- Geometry Triangle a + b or c + d | 13-Mar-2021 |
| rafagurrl | Re: GRE Math Challenge #20- Geometry Triangle a + b or c + d | 19-Nov-2020 |