| Answer | Crossword Clue |
|---|---|
| KLEIN | ... bottle (one-sided figure) |
| KLEIN | ... bottle (one-sided surface) |
| chiliahedron | (Greek) a one-thousand sided solid figure |
| chiliahedra | CHILIAHEDRON, (Greek) a one-thousand sided solid figure |
| chiliahedrons | CHILIAHEDRON, (Greek) a one-thousand sided solid figure |
| rectangle | a four-sided plane figure with all its angles right angles, esp one with unequal adjacent sides |
| rectangles | RECTANGLE, a four-sided plane figure with all its angles right angles, esp one with unequal adjacent sides |
