Geometry Ch 1

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Across
  1. 1. point, lines, segments, rays on the same plane
  2. 4. the point that is in the exact middle of a segment
  3. 6. an angle which measures 90 degrees
  4. 9. a set of many points that extend in opposite directions without ending
  5. 11. has one endpoint and extends in the other direction with no end
  6. 13. to divide into two equal parts
  7. 14. the point common to both sides of an angle
  8. 15. two angles whose measure add up to 90 degrees
  9. 16. a two-dimensional flat surface
  10. 17. two angles whose measures add up to 180 degrees
Down
  1. 2. an angle which measures less than 90 degrees
  2. 3. a statement about geometric figures accepted as true without proof
  3. 5. a unit of angle measure
  4. 7. points on the same line
  5. 8. an angle which measures more than 90 degrees
  6. 10. angles that have a common vertex and a common side
  7. 12. a figure made up of two sides, or rays, with a common endpoint
  8. 17. portion or part of a line with an endpoint at each end
  9. 18. an exact location