Math

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Across
  1. 2. drawing
  2. 6. this shape can be a rectangle but a rectangle can not be it
  3. 8. dot drawing
  4. 13. triangle drawing 2
  5. 15. opposite of another operation
  6. 16. all sides totaled together
  7. 17. middle number in a set of numbers
  8. 19. 8 sided shape
  9. 20. AC line
Down
  1. 1. 90 degrees
  2. 3. basic structure in which theories are made
  3. 4. drawing
  4. 5. base times height is sued to find what
  5. 7. a square plus b square equals c
  6. 9. any angle over 90 degrees
  7. 10. two dimensional surface that extends infinitely
  8. 11. 2pir is used to find what
  9. 12. all right triangles equal 90 degrees
  10. 14. drawing
  11. 18. dot with line drawing