Geometry Terms

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Across
  1. 5. 8 sides
  2. 7. S=(n-2)×180
  3. 9. 3 sides
  4. 12. a closed shape with straight sides
  5. 13. angle bisectors intersect at a point
  6. 15. 4 sides
  7. 16. angles sum up to 90 degrees
  8. 18. sides are equal
  9. 19. all vertices point toward the center
  10. 20. three medians intersect at one point
Down
  1. 1. all sides and angles are the same
  2. 2. 10 sides
  3. 3. 12 sides
  4. 4. altitudes
  5. 6. 7 sides
  6. 8. sum is always 360 degrees
  7. 10. two angles next to each other equals 180 degrees
  8. 11. lines that are the same distance apart and never intersect
  9. 14. perpendicular bisectors of the sides intersect at a point
  10. 17. all vertices point away from the center