Trigonometry Vocabulary

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Across
  1. 4. 1"
  2. 5. A unit of measure used to measure the size of an angle
  3. 6. the inverse of a value or number
  4. 8. Triangles with equal corresponding angles measures
  5. 11. The common endpoint
  6. 12. Ratios of side lengths in a right triangle (sinθ, cosθ, tanθ, cscθ, secθ, cotθ)
  7. 15. The straight path connecting two points (A and B)and extending beyond the points in both directions
  8. 16. An angle measuring greater than 90° but less than 180°
  9. 17. Angles above and below parallel lines intersected by a transversal
  10. 21. Two angles in standard position with the same terminal side
  11. 23. Angles of equal measure that are opposite one another and share the same vertex
  12. 25. When the initial side of an angle is along the positive x-axis and its vertex is at the origin
  13. 26. Found by counting all of the digits from left to right starting with the first nonzero digit
  14. 29. When a ray is rotated around its endpoint
  15. 30. The portion of the line between two points (including the points)
  16. 31. 1'
  17. 34. An alternate way of representing parts of degrees (ex. 62.138°)
  18. 35. The ray after it is rotated
  19. 37. Triangles with equal corresponding angle measures and corresponding side lengths
  20. 38. The other two sides of a right triangle
  21. 39. Angles in standard position with terminal sides along the x-axis or y-axis
  22. 40. The longest side of a right triangle; opposite the right angle
Down
  1. 1. A line that intersects two other coplanar lines
  2. 2. The acute angle with positive measure formed by the terminal side of θ and the x-axis
  3. 3. A triangle with two equal sides (legs) and therefore has two equal angles opposite those legs
  4. 7. A triangle in which the angle is a right angle (90°)
  5. 9. An angle measuring exactly 180°
  6. 10. Rotation in a clockwise direction
  7. 13. When the sum of two positive angles is 180°
  8. 14. An angle that has its vertex at the center of a circle
  9. 18. The portion of the line that starts at one point (A) and extends to infinity (beyond B)
  10. 19. A way of breaking down degrees similar to how we break down time in hours-minutes-seconds
  11. 20. A triangle with three equal sides and therefore three equal angles
  12. 22. The ray in its original position
  13. 24. Stems from the Greek words trigonon, which means "triangle", and meterin, which means "to measure"
  14. 27. When the sum of two positive angles is 90°
  15. 28. Angles that lie inside (between) parallel lines intersected by a transversal
  16. 32. Rotation in a counterclockwise direction
  17. 33. An angle measuring exactly 90°
  18. 36. An angle measuring greater than 0° but less than 90°