| Answer | Crossword Clue |
|---|---|
| GEOMETRY | Euclidean subject. |
| PLANEGEOMETRY | Subject of a Euclidean treatise |
| ELEMENTS | Euclidean work |
| QED | Euclidean abbr. |
| DELTA | Euclidean triangle? |
| NON | ...-Euclidean geometry |
| AREA | Euclidean finding |
| THEOREM | Euclidean proposal |
| AREAS | Euclidean findings |
| GEOMETRY | Euclidean topic |
| QEDS | Euclidean abbreviations. |
| GEOM | Euclidean subj. |
| THEOREM | Euclidean idea |
| PARALLEL | Euclidean geometry's ... postulate |
| ASSES | ... bridge (Euclidean proposition) |
| NON | Intro to Euclidean geometry? |
| SPHERICS | Branch of non-Euclidean geometry |
