Geometry Vocabulary: Chapter 1-5

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Across
  1. 1. the same; equal measure
  2. 4. rays that share an endpoint and extend in opposite directions
  3. 6. a triangle with 3 congruent sides
  4. 9. lines that are not coplanar and will never intersect
  5. 10. two lines that have the same slope
  6. 11. a triangle with 3 angles less than 90 degrees
  7. 13. a triangle with 3 congruent angles
  8. 16. angles that are in matching positions when a transversal crosses 2 lines
  9. 18. two angles that are adjacent and supplementary
  10. 19. a triangle with at least 2 congruent sides
Down
  1. 1. two angles whose sum is 90 degrees
  2. 2. angles that are across from each other when two lines intersect; have equal measure
  3. 3. two lines that have slopes that are opposite reciprocals
  4. 5. two angles whose sum is 180 degrees
  5. 7. a triangle with no congruent sides
  6. 8. three or more points that lie on the same plane
  7. 12. three or more points that lie on the same line
  8. 14. a segment that connects midpoints of two sides of a triangle; parallel to the third side
  9. 15. a segment that connects a vertex to the midpoint of the opposite side
  10. 17. a line or ray that divides an angle in half