Basic Geometry Concepts

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Across
  1. 3. a line that goes from side-to-side.
  2. 5. a straight path that has a beginning but not ending.
  3. 7. two angles whose sum is 90 degrees.
  4. 10. a point where two angles begin or meet.
  5. 11. a unit used to measure an angle.
  6. 13. an angle that measures more than zero degrees but less than 90.
  7. 15. something that has an end.
  8. 18. never ending.
  9. 20. an angle that measures 180 degrees.
  10. 21. a math tool used for measuring or drawing angles.
  11. 23. two angles whose sum is 180 degrees.
  12. 25. a straight path that has a beginning and an ending.
Down
  1. 1. two lines that never cross or touch.
  2. 2. two angles that are next to each other.
  3. 4. as straight path that goes on infinitely in either direction.
  4. 6. two lines that form right angles where they intersect.
  5. 8. an angle that measures more than 90 degrees but less than 180.
  6. 9. a line that goes up and down
  7. 12. the middle point.
  8. 14. two rays that have a common end point
  9. 16. angles that are opposite each other when two lines intersect.
  10. 17. where lines cross over a common point.
  11. 19. when a figure is folded in half and the two halves match perfectly.
  12. 22. an angle that measures more than 180 degrees but less than 360.
  13. 24. an angle that is 1/4 of a circle.