Across
- 1. polygon with four equal sides
- 6. one set of parallel sides
- 8. closed geometric figure with three or more lines
- 9. one side of a triangle or parallelogram which is used to find the area
- 11. to form a right angle to another line
- 15. a polygon with six sides
- 16. never intersect
- 18. having the same size and shape
- 20. a straight path extending both directions
- 21. to cross over
Down
- 2. sides and angles are all congruent
- 3. a line from the center of a regular polygon at right angles to any of its sides
- 4. three sided polygon
- 5. the length from the base to the top of the figure
- 7. a figure with four congruent sides
- 10. the inside measurement of a shape measured in units squared
- 11. five sided regular polygon
- 12. a ten sided polygon
- 13. four or more right angles
- 14. formula for a parallelogram
- 17. to find the value of an expression
- 19. the point of intersection of two sides of a polygon