trigonometry

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Across
  1. 3. A __________triangle having a 90-degree angle.
  2. 4. ratio of the adjacent side to the hypotenuse of a right-angled triangle
  3. 5. The study of the properties of triangles and trigonometric functions and their applications
  4. 6. involving the use of sine, cosine, tangent, cosecant, secant, and cotangent are called trigonometric _______
  5. 8. ratio of the opposite to the adjacent side of a right-angled triangle
  6. 9. ratio of the hypotenuse to the adjacent side of a right-angled triangle and the inverse of Cosine
Down
  1. 1. ratio of the adjacent to the opposite side of a right-angled triangle and the inverse of Tangent
  2. 2. A ratio of the measure of two sides of a right triangle
  3. 4. ratio of the hypotenuse to the opposite side of a right-angled triangle and the inverse of Sine
  4. 7. ratio of the opposite side to the hypotenuse of a right-angled triangle