Geometry Vocabulary

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Across
  1. 5. Polygon with six sides
  2. 7. Intersecting lines that cross at a 90 degree angle
  3. 8. Three-sided polygon with one 90 degree angle
  4. 12. A three-sided polygon with no sides of equal length
  5. 13. An angle that is larger than 90 degrees
  6. 17. A part of a line that has two endpoints
  7. 18. A three sided polygon with one pair of equal length sides
  8. 19. A closed shape with straight sides
  9. 20. A line that extends to infinity in both directions
Down
  1. 1. Lines in the same plane that never touch each other
  2. 2. A triangle with three sides of equal length
  3. 3. Two lines that cross each other
  4. 4. A three sided polygon with all angles less than 90 degrees
  5. 6. An angle that is less than 90 degrees
  6. 9. Polygon with five sides
  7. 10. A unit used to measure angles
  8. 11. A triangle with one angle that is more than 90 degrees
  9. 14. Polygon with eight sides
  10. 15. A quadrilateral with 1 pair of parallel sides
  11. 16. An angle that is exactly 90 degrees