Geometry thing

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Across
  1. 4. outside of a shape
  2. 5. 3.14159
  3. 7. middle of the line
  4. 9. a vertical or horizontal movement.
  5. 11. a straight...
  6. 14. half line in the middle of a circle
  7. 15. toa
  8. 18. Def of soh cah toa
  9. 19. 0 through 360
Down
  1. 1. outside of a 3d shape
  2. 2. exactly the same shape and size
  3. 3. two lines that intersect to create a 90 degree angle
  4. 6. inside of a 3d shape
  5. 8. a squared plus b squared
  6. 10. soh
  7. 12. line in the middle of a circle
  8. 13. cah
  9. 16. two lines that will never intersect
  10. 17. inside of a shape
  11. 20. a flat shape that can be folded into 3d