Math Crossword

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Across
  1. 4. T=S(s-a)(s-b(s-c)
  2. 6. not the legs
  3. 8. circle with radians and degrees on it
  4. 10. opp/hyp
  5. 11. arc length over time
  6. 12. relates the lengths of the sides of a plane triangle to the cosines
  7. 14. central angle over time
  8. 16. hyp/opp
  9. 17. adj/hyp
  10. 18. opp/adj
  11. 19. hyp/adj
Down
  1. 1. measure of a central angle theta the intercepts an arc
  2. 2. periodic variable is a measure of its change over 1 period
  3. 3. where a structures and respective elements provide templates
  4. 5. equation relating the lengths of sides of arbitrary triangle of the sines
  5. 7. one that repeats its values in regular intervals
  6. 9. technique in calculus for calculating derivatives of reciprocal function
  7. 13. adj/opp
  8. 14. where theta is measured in radians
  9. 15. what a angle is measured in