Angle Vocabulary

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Across
  1. 5. same size and shape (segments, angles, triangles...)
  2. 7. a single location in space, shown as a dot
  3. 10. two angles that add to 90 degrees
  4. 11. a polygon with three sides
  5. 15. .
  6. 18. .
  7. 19. an angle that measures less than 90 degrees
  8. 20. a line or part of a line that cuts an angle in two congruent parts
  9. 21. two angles that add to 180 degrees
Down
  1. 1. a part of a line with endpoints, you can measure it
  2. 2. an angle that measures between 90 and 180 degrees
  3. 3. two angles that are formed by the same two lines and are not next to each other
  4. 4. .
  5. 6. an angle that measures exactly 90 degrees
  6. 8. .
  7. 9. two angles that add to 180 degrees and are next to each other
  8. 12. goes on forever in both directions, has arrows at ends
  9. 13. formed by two rays that begin at the same point
  10. 14. two lines that form a right angle
  11. 16. two lines that never meet
  12. 17. a half of a line, it has an endpoint and an arrow