Math puzzles

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Across
  1. 1. always adds to 180
  2. 3. around the origin
  3. 5. bxh
  4. 7. Across X/Y
  5. 12. opposite/hypotenuse
  6. 13. the chance of something happening
  7. 14. Half the diameter
  8. 16. Two lines intersecting that are identical
  9. 18. across from 90 a 90 degree angle
  10. 19. b^2
  11. 20. Rise over Run
Down
  1. 2. two angles on opposite sides of a line
  2. 4. Opposite/adjacent
  3. 6. The subject
  4. 8. angles that have the same measure
  5. 9. Half a sphere
  6. 10. a way to prove similarity using sides and angles
  7. 11. a way to prove similarity using only sides
  8. 12. objects that look alike
  9. 15. theres no end to it
  10. 17. adjacent/hypotenuse