Trigonometry

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Across
  1. 3. Equal to angle at the center of a circle
  2. 5. Function a function obtained by expressing the dependent variable of one function as the independent variable of another
  3. 8. Ratio of the hypotenuse to the opposite side of a right-angled triangle
  4. 10. a line that touches a curve at only one point
Down
  1. 1. Ratio of the adjacent to the opposite side of a right-angled triangle
  2. 2. ratio of the adjacent side to the hypotenuse of a right-angled triangle
  3. 4. Relating to or according
  4. 6. Function a function of an angle expressed as a ratio of the length of the sides of right-angled triangle
  5. 7. a straight line that intersects a curve at two or more points
  6. 9. ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle