Trigonometry

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Across
  1. 3. The ratio of the Opposite/Adjacent
  2. 4. The ratio of the Opposite/Hypotenuse
  3. 6. Acronym for remembering trigonometric ratios
  4. 7. The side all the way across the triangle from a given reference angle
Down
  1. 1. The longest side of the triangle (opposite the right angle in a right triangle)
  2. 2. The ratio of the Adjacent/Hypotenuse
  3. 5. The "attached" side, connected to the reference angle