Ronniyah Trig Puzzle

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Across
  1. 4. The side across from the reference angle
  2. 7. the distance along the edge of the part of the circle
  3. 11. The longest side in a right triangle
  4. 13. opposite over hypotenuse
  5. 14. Type of angle less than 90°
  6. 16. the opposite of SIN
  7. 17. Reciprocal of TAN
  8. 18. opposite over adjacent
  9. 20. three the quadrant where everything is negative
  10. 21. A Greek letter often used to represent an angle
Down
  1. 1. Angle more than 90° but less than 180°
  2. 2. adjacent over hypotenuse
  3. 3. the measure of space inside a slice of the circle
  4. 5. the opposite of COS
  5. 6. of cosine used when given SAS or SSS
  6. 8. sine over cosine
  7. 9. Common acronym for basic trig ratios
  8. 10. A triangle with one 90-degree angle
  9. 12. one the quadrant where everything is positive
  10. 15. Trig function that is adjacent over hypotenuse
  11. 19. what you say when your calculator shows ERROR