Mont: Year 9 Trigonometry

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Across
  1. 4. A fundamental relation in geometry among the three sides of a right triangle. It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
  2. 7. A unit of measure for angles. One complete revolution is 2π radians.
  3. 8. In a right triangle, the ratio of the length of the opposite side to the length of the adjacent side.
  4. 10. A unit of measurement for angles. One complete revolution is 360 degrees.
  5. 11. The longest side of a right-angled triangle, opposite the right angle.
  6. 12. The reciprocal of sine.
  7. 13. A mnemonic used to remember the definitions of sine, cosine, and tangent: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.
  8. 14. In relation to a given angle in a right triangle, the side that is furthest from the angle.
Down
  1. 1. A branch of mathematics that studies relationships involving lengths and angles of triangles.
  2. 2. A triangle with one angle measuring 90 degrees.
  3. 3. The reciprocal of tangent.
  4. 5. In a right triangle, the ratio of the length of the side that is adjacent to the angle to the length of the hypotenuse.
  5. 6. In relation to a given angle in a right triangle, the side that is next to the angle.
  6. 9. The reciprocal of cosine.
  7. 13. In a right triangle, the ratio of the length of the side that is opposite the angle to the length of the longest side, the hypotenuse.