Geometry

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Across
  1. 2. center of circle to Circumference
  2. 4. part of a circle
  3. 5. round shape
  4. 8. lines crossing less than 90 degrees
  5. 10. slanted line
  6. 11. starting point and travels in any direction
  7. 12. all sides equal
  8. 13. angle less than 90 degrees
Down
  1. 1. never meet
  2. 3. perpendicular to horizon
  3. 5. distance around a circle
  4. 6. rectangular solid
  5. 7. parallel to the horizon
  6. 9. middle of a something