Crossword puzzle

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Across
  1. 2. A line segment that forms part of a polygon or a triangle.
  2. 3. The side of a right triangle that is opposite the right angle and is the longest side.
  3. 4. In a right triangle, the side that is opposite a specific angle.
  4. 5. A unit of angular measure, where a circle is divided into 360 equal parts.
  5. 8. The reciprocal of the tangent function, i.e., 1/tan(x).
  6. 11. of Cosines A trigonometric relationship that relates the lengths of the sides of a triangle to the cosine of one of its angles.
  7. 12. A trigonometric function that relates the ratio of the length of the side opposite an angle to the length of the hypotenuse.
  8. 16. A polygon with three sides and three angles.
  9. 18. The reciprocal of the sine function, i.e., 1/sin(x).
  10. 19. A measure of rotation between two lines or rays, usually measured in degrees or radians.
  11. 20. A trigonometric function that relates the ratio of the length of the side opposite an angle to the length of the side adjacent to the angle.
Down
  1. 1. identities Equations that are true for all values of the variables involved and are used to simplify trigonometric expressions or solve trigonometric equations.
  2. 6. Sines A trigonometric relationship that relates the ratios of the lengths of the sides of a triangle to the sines of its angles.
  3. 7. The reciprocal of the cosine function, i.e., 1/cos(x).
  4. 9. In a right triangle, the side that is adjacent (next to) a specific angle.
  5. 10. A branch of mathematics that deals with the relationships between the angles and sides of triangles.
  6. 13. Theorem A fundamental theorem in trigonometry that states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.
  7. 14. circle A circle with a radius of 1 unit used in trigonometry to define trigonometric functions of any angle.
  8. 15. A unit of angular measure based on the radius of a circle, where 2π radians is equal to a complete circle.
  9. 17. A trigonometric function that relates the ratio of the length of the side adjacent to an angle to the length of the hypotenuse.