Maths, geometry vocabulary

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Across
  1. 3. two intersecting lines meet
  2. 4. two lines that never meet are:
  3. 8. a polygon, two sets of parallel lines, all angles are 90°
  4. 9. a line touching, but never entering a circle
  5. 12. a line going through the center of a circle
  6. 14. a line going through a circle
  7. 15. the perimeter of a circle
  8. 17. a polygon, two sets of parallel lines, no angles are 90°
  9. 18. a line going halfway through the center of a circle
  10. 19. eight sided polygon
Down
  1. 1. a polygon, two sets of congruent paradelle lines, all angles are 90°
  2. 2. six-sided polygon
  3. 5. a section of the circumference
  4. 6. something in the 2nd dimension with no star or end point
  5. 7. a polygon with three sides
  6. 10. something in the 2nd dimension with a starting point, but no end point
  7. 11. five-sided polygon
  8. 12. ten-sided polygon
  9. 13. a polygon with four sides
  10. 16. a polygon with nine sides
  11. 18. a polygon, two sets of congruent parallel lines, no 90° angles