Trigonometry

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Across
  1. 2. the length of the unit circle
  2. 7. the cathetus that you must divide to calculate the sine function
  3. 9. the longest side in a right-angled triangle
  4. 11. you can calculate it dividing the opposite by the adjacent
Down
  1. 1. the sign of the sin (45°)
  2. 3. the sign of the cos (120°)
  3. 4. the ancient Greek word for triangle
  4. 5. you must use it to calculate the cosine function
  5. 6. we are looking for it
  6. 8. there are 180 of them in a straight angle
  7. 10. you had to use this word to say measure among the ancient Greek people