Across
- 4. a polygon with four sides and four angles
- 5. a polygon with four equal length sides
- 6. a polygon with two sets of parallel sides
- 8. an endless flat surface
- 12. an angle that measures 90 degrees
- 13. identical in size and shape
Down
- 1. a polygon with four right angles
- 2. a polygon with one set of parallel sides
- 3. lines that never cross or intersect
- 7. an invisible line that divides a shape into two identical halves
- 9. a closed figure made of straight lines
- 10. characteristics of a shape
- 11. where two sides of a shape meet