Across
- 3. a parallelogram with four equal sides
- 7. a quadrilateral with one set of parallel sides
- 10. a closed shape with three sides
- 11. sharing a common endpoint or border; next to
- 12. equal in length or size
Down
- 1. a quadrilateral with two pairs of parallel sides
- 2. a closed shape with three or more sides
- 4. a parallelogram with four right angles
- 5. a quadrilateral with four congruent sides and four right angles
- 6. a closed shape with four sides
- 8. a quadrilateral with two sets of congruent and adjacent sides
- 9. sides or lines that remain the same distance apart