Crossword Puzzle

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Across
  1. 3. ratio of base to perpendicular
  2. 6. the value of cosA decreases as A _______
  3. 7. sine of 0degree
  4. 8. inverse trigonometric ratio of cos
  5. 13. the_____ theorem can be used to find the value of a missing side length in a right triangle
  6. 15. the angle between the line of sight and the horizontal level when an observer looks upwards
  7. 18. ratio of perpendicular to hypotenuse
  8. 19. tangent of 45 degrees
  9. 20. cofunctions of _____angles are always equal
Down
  1. 1. a ratio of the measure of two sides of a right triangle is _____
  2. 2. the unit for measuring the angels
  3. 4. sin squared plus cos squared
  4. 5. a line from an observer's eye to a distant point
  5. 9. cos/ sin
  6. 10. the longest side of a right triangle
  7. 11. abbreviated form of the word cosecant
  8. 12. the study of triangles;their angles,lengths and more is known as______
  9. 14. the six trigonometric______ are sin, cos,tan,cot,sec and cosec
  10. 16. secant of 60 degrees
  11. 17. triangle with a 90 degree angle is called a ______ angled triangle