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Across 4. the unit used to measure one angle 5. an angle with measures grater than 90 degrees 7. two angles that add up to 90 degrees 8. a type of symmetry were a shape can be reflected into itself about a line 10. an angle inside a figure 11. a polygon with sides that are all the same size 17. an angle with a measure of 90 degrees 19. two angles that add up to 180 degrees 20. a polygon with 1 million sides 21. a polygon with 6 sides 22. a 2 dimensional figure with straight lines 23. a Greek word for angle

Down 1. a polygon with 4 sides 2. a polygon with sides not all the same size 3. a type of symmetry were a shape can be rotated about a point through an angle of less than 360 degrees 6. an angle with a measure less than 90 degrees 9. an angle on the outside of a figure 12. an angle with a measure of 180 degrees and also known as a line 13. a polygon with ten sides 14. a polygon with 8 sides 15. a polygon with 7 sides 16. a Greek word for many 18. a polygon with 9 sides