CROSSWORD PUZZLE

1234567891011121314151617181920212223
Across
  1. 3. The trigonometric function that is equal to the ratio of the side opposite given angle to the hypotenuse
  2. 7. Is a branch of mathematics that studies relationships between side lengths and angles of triangles
  3. 10. A straight line that intersects a curve at two or more points
  4. 11. Having common boundary or edge
  5. 12. Ratio of the adjacent to the to the opposite side of a right-angled triangle
  6. 13. An angle more than 90 degrees
  7. 15. The longest side of a right triangle
  8. 18. The space between two lines or planes that intersect
  9. 19. Is a function that undoes the action of the another fuction
  10. 20. This is called an "angle-based" right triangle
  11. 21. The inverse function of tangent
  12. 22. Ratio of the adjacent side to the hypotenuse of a right-angled triangle
  13. 23. A line that touches a curve at only one point
Down
  1. 1. An angle less than 90 degrees
  2. 2. An angle of 90 degrees
  3. 4. Funtion of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
  4. 5. A polygon with three edges and three vertices
  5. 6. Is a unit of measure for angles used mainly in trigonometry
  6. 8. What something is used for
  7. 9. The inverse function of the cosine
  8. 14. Relating to or according to the principles of trigonometry
  9. 16. The reciprocal of sine
  10. 17. Is the one across from a given angle
  11. 21. The inverse function of the sine