Geometry

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Across
  1. 3. A polygon with 8 sides
  2. 5. How much space there is in a 3-D shape
  3. 6. segment A part of a line
  4. 10. The distance around an object
  5. 12. The 3-D version of a square
  6. 14. A 4 sided polygon with equal sides
  7. 15. A line with a starting point, but no ending point.
  8. 16. A 7 sided shape
  9. 17. A polygon with 3 sides
Down
  1. 1. A polygon with 9 sides
  2. 2. A shape with 2 or more parallel lines.
  3. 4. A 0 sided shape
  4. 7. When there are two sides with the same exact design
  5. 8. An angle less than 90 degrees
  6. 9. An angle more than 90 degrees
  7. 11. A 4 sided polygon with 2 sets of equal sides
  8. 13. A 6 sided shape
  9. 18. angle An angle exactly 90 degrees.
  10. 19. How much space there is on a flat surface