Geometry Vocab Review

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Across
  1. 6. a flat surface that extends forever
  2. 9. a triangle with at least 2 congruent sides
  3. 13. a triangle with all measures less than 90 degrees
  4. 14. a triangle containing an angle that measures 90 degrees
  5. 15. a closed plane figure formed by 3 or more line segments that intersect only at their endpoints
  6. 16. two angles whose measures have a sum of 180 degrees
  7. 17. a triangle containing one angle measuring greater than 90 degrees but less than 180 degrees
  8. 19. a part of a line between 2 endpoints
  9. 20. having the same size and shape
  10. 21. lines that intersect to form right angles
Down
  1. 1. an angle that measures 90 degrees
  2. 2. an angle that measures less than 90 degrees
  3. 3. lines in a plane that do not intersect
  4. 4. two angles whose measures add to 90 degrees
  5. 5. a pair of opposite congruent angles formed by intersecting lines
  6. 7. a straight path that extends without end in opposite directions
  7. 8. an angle that measures more than 90 degrees and less than 180 degrees
  8. 10. a triangle with 3 congruent sides
  9. 11. states that the measures of the angles in a triangle add to 180 degrees
  10. 12. a triangle with no congruent sides
  11. 18. a line that intersects 2 or more lines