Right Triangle Trigonometry

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Across
  1. 1. Hypotenuse over adjacent
  2. 4. Adjacent over hypotenuse
  3. 5. Hypotenuse over opposite
  4. 7. Function whose rule is given by a trigonometric ratio.
  5. 9. Opposite over adjacent
Down
  1. 2. Adjacent over opposite
  2. 3. A circle on the Cartesian Plane that has a radius of 1 unit and is centered at the origin.
  3. 6. Opposite over hypotenuse
  4. 8. A unit of angle measure based on arc length.