Geometry Vocabulary Crossword Puzzle

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Across
  1. 1. a part of a line that begins at a particular point and extends forever
  2. 3. sides or segments that have the exact same length
  3. 4. a figure with 4 sides and 4 right angles
  4. 7. two sides that share a common vertex
  5. 9. a triangle with no equal sides
  6. 11. a triangle with one angle greater than 180 degrees
  7. 15. a triangle with a right angle
  8. 17. an angle that measures less than 90 degrees
  9. 18. a triangle with three acute angles
  10. 19. a two dimensional object that has no endpoints and continues on forever in both directions
  11. 20. the figure formed by two rays called the sides of the angle, sharing a common endpoint
Down
  1. 2. two angles that are next to each other
  2. 5. an angle that measures more than 90 degrees
  3. 6. a 180 degree angle
  4. 8. two lines that intersect at right angles
  5. 9. a figure with 4 congruent sides and four right angles
  6. 10. Part of a line connecting two points and has definite end points
  7. 12. a angle that equals 90 degrees
  8. 13. lines that never meet and are always the same distant apart
  9. 14. a quadrilateral with at least one pair of parallel sides
  10. 16. the point at which the rays of an angle or the sides of a polygon meet; the plural form of the word is "vertices"