Basic Geometry Terminology

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Across
  1. 7. The point that is in the exact middle.
  2. 9. A grid used to plot points.
  3. 10. Two intersecting lines that create four 90° angles.
  4. 11. Points Points that stop a line from continuing on.
  5. 12. A flat figure that has to be closed with sides.
  6. 14. used to measure angles.
  7. 15. The name for the shared endpoint of an angle.
  8. 17. Points that do not lie in the same line.
  9. 24. To have the same measure.
  10. 25. Two angles that add together to equal 180°.
  11. 26. A point, line, or plane cuts a segment into equal parts.
  12. 28. A ray that divides an angle into two equal parts.
  13. 30. Two angles that share a ray, or common side.
  14. 31. Two angles that add together to equal 90°.
Down
  1. 1. An angle that measures 90°.
  2. 2. An angle that is greater than 90° and less than 180°.
  3. 3. Two angles opposite across the vertex.
  4. 4. On the same plane.
  5. 5. Two lines that will never cross.
  6. 6. The zero value of a protractor.
  7. 8. A dot that does not actually have any size.
  8. 12. A line with endpoints on each side.
  9. 13. Two lines that cross.
  10. 16. A line with arrowheads on each side.
  11. 18. Points that lie on the same line.
  12. 19. The figure with two rays with the same endpoint.
  13. 20. Two angles that together form a line.
  14. 21. An angle that measures less than 90°.
  15. 22. A line with one endpoint and one arrowhead.
  16. 23. The unit of measure for an angle.
  17. 27. A point that lies between two enpoints.
  18. 29. A point, line, or plane that divides into two equal parts.