Across
- 6. rectangle with sides of equal length
- 9. lines space that are not coplanar and never meet
- 12. geometric figure with four sides
- 13. interior angles on opposites sides of transversal
- 14. quadrilateral with exactly one pair or parallel sides
- 15. pairs of angles in similar positions
Down
- 1. parallelogram with four equal sides
- 2. exterior angles on opposite sides of the transversal
- 3. lines or points in the same plane
- 4. quadrilateral whose opposite sides are parallel
- 5. parallelogram with four right angles
- 7. line that crosses parallel lines
- 8. lines in the same plane that never meet
- 10. Angle inside parallel lines
- 11. angle outside the parallel lines