Geometry Chapter 1

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Across
  1. 5. an angle whose measure is less than 90 degrees
  2. 6. two lines that lie on the same plane but never touch
  3. 7. lines that never touch, are not parallel and do not intersect
  4. 8. an angle whose measure is greater than 90 degrees and less than 180
  5. 10. a flat surface that has no thickness and extends in all directions without end
  6. 11. a line consisting of two endpoints and all points between them
  7. 12. an example that proves a conjecture false
  8. 13. points or lines that lie on the same plane
  9. 14. a point on a line segment that is equidistant away from both endpoints
  10. 17. an angle that has a 90 degree measure
  11. 18. a line with a single endpoint that extends infinitely in one direction
  12. 19. an excepted statement of fact
Down
  1. 1. a series of points that extend in two opposite directions without end
  2. 2. equal
  3. 3. two angles whose sum is 180 degrees
  4. 4. two angles whose sum is 90 degrees
  5. 9. when a line segment or angle is cut into two congruent parts
  6. 10. the measure of the total length around the outside of a shape
  7. 12. points that lie on the same line
  8. 15. a location
  9. 16. 2 times pi times r