Geometry Vocabulary

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Across
  1. 4. Points that lie on the same line.
  2. 6. Two lines that intersect at a 90 degree angle.
  3. 9. Two angles with measures that sum to 90.
  4. 10. An angle with a degree measure of 180.
  5. 11. Two angles directly across from each other on intersecting lines.
  6. 12. Two angles with measures that sum to 180.
  7. 14. Adjacent angles that are supplementary.
  8. 17. Made up of points with no thickness or width.
  9. 19. A measurable part of a line consisting of two endpoints.
  10. 20. A flat surface made up of points and extends indefinitely in all directions.
Down
  1. 1. Two lines that never intersect.
  2. 2. If two segments have the same length, then they are congruent.
  3. 3. The intersection of two rays at an endpoint.
  4. 5. Points that lie on the same plane.
  5. 7. An angle with a degree measure of 90.
  6. 8. An angle with a degree measure greater than 90.
  7. 13. A location with no size or shape.
  8. 15. An angle with a degree measure less than 90.
  9. 16. A line that extend indefinitely in one direction.
  10. 18. The common endpoint of an angle.