Geometery Crossword Puzzle

12345678910111213141516171819
Across
  1. 1. extends indefinitely
  2. 4. exact position on a plane
  3. 7. quadrilateral with one pair of parallel lines
  4. 8. formed when two rays intersect
  5. 10. when two parallel lines are cut by a transversal, these angles are supplementary
  6. 13. a statement that cane be proven by postulates, terms, defintions
  7. 14. no sides are congruent
  8. 15. a ten-sided polygon
  9. 18. uses specific examples to make a prediction
  10. 19. two angles are formed by two intersecting lines
Down
  1. 1. accepted as true without proof
  2. 2. formed when two lines intersect at the same point
  3. 3. all the sides of a polygon added
  4. 5. a nine-sided polygon
  5. 6. opposite sides parallel, all side lengths same
  6. 9. the length of the outside of a circle
  7. 11. the converse hypothesis and conclusion is negated
  8. 12. the point where the medians of a triangle meet
  9. 16. where the bisectors of a triangle meet
  10. 17. joins vertex to midpoint of opposite side