Geometry

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Across
  1. 5. 0,0
  2. 8. points lie on the same line
  3. 9. angle whose measure is less than 90 degrees
  4. 10. two non collinear rays with a common endpoint
  5. 12. angle formed by opposite rays
  6. 13. lines that meet at a 90
  7. 15. a segment connecting two points
  8. 17. geometric elements of the same measure
  9. 18. the sum of two angles to equal 90 degrees
  10. 20. a line with a single endpoint
Down
  1. 1. points that lie on the same plane
  2. 2. a polygon with four sides
  3. 3. The distance around a two-dimensional plane
  4. 4. 3 dimensional figure
  5. 6. a figure with three straight sides and angles
  6. 7. A dot
  7. 11. the middle point of a line segment
  8. 14. a round plane figure
  9. 16. a flat figure that extends in different directions
  10. 19. angle whose measure is greater than 90 degrees