Trigonometry

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Across
  1. 3. A trig ratio of opposite/adjacent
  2. 4. An angle within a circle made from 2 chords
  3. 5. The unit used to measure arcs
  4. 8. A circle with a radius of 1
  5. 10. A trig ratio that is the reciprocal of cosine
  6. 11. A unit to measure arcs and angles
  7. 13. The trig functions that equal one another
  8. 15. The angle within a circle with the center at the origin
  9. 16. A Greek symbol used to identify an unknown angle
  10. 17. A trig ratio of opposite/hypotenuse
  11. 18. The non-hypotenuse sides of a triangle
  12. 21. a^2+b^2=c^2
  13. 22. 2 angles that add up to 180 degrees
  14. 23. An angle less than 90 degrees
  15. 25. An angle with more than 90 degrees
Down
  1. 1. An angle with exactly 90 degrees
  2. 2. A trig ratio that is the reciprocal of tangent
  3. 6. The leg next to the angle theta
  4. 7. A trig ratio that is the reciprocal of sine
  5. 9. Triangle with a 90 degree angle
  6. 12. 2 angles that add up to 90 degrees
  7. 14. A triangle with 2 sides of the same length
  8. 19. The longest leg of a right triangle
  9. 20. The leg across from the angle theta
  10. 24. A trig ratio of adjacent/hypotenuse