Geometry Facts

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Across
  1. 6. of the lengths of a polygon's sides
  2. 8. of a polygon/number of square units within a polygon
  3. 9. triangle/3 acute angles
  4. 10. figures/figures with the same shape and size
  5. 11. which intersects 2 or more coplanar lines
  6. 13. triangle/3 sides congruent
  7. 14. or glide
  8. 17. bisector/ray that divides the angle into equal parts
  9. 18. angles/2 angles that equal to 90 degrees
  10. 20. lines/non-coplanar lines that do not intersect
  11. 21. angles/2 angles that equal to 180 degrees
  12. 23. or mirror image
Down
  1. 1. or rotation
  2. 2. equal to 90 degrees
  3. 3. polygon/congruent sides and congruent angles
  4. 4. triangle/3 congruent angles
  5. 5. lines/2 lines that meet to form right angles
  6. 7. that can be proven
  7. 12. equal to 180 degrees
  8. 15. triangle/at least two sides are congruent
  9. 16. triangle/no congruent sides
  10. 19. planes/planes that do not intersect
  11. 22. triangle/1 right angle
  12. 24. triangle/1 obtuse angle