trig

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Across
  1. 3. The side opposite the right angle in a right-angles triangle. It is also the longest side of the right-angled triangle.
  2. 5. The "downwards" angle from the horizontal to a line of sight from the observer to some point of interest.
  3. 7. The "upwards" angle from the horizontal to a line of sight from the observer to some point of interest.
Down
  1. 1. Two or more shapes where the corresponding lengths are in the same ratio.
  2. 2. The side opposite to a given angle in a right-angled triangle.
  3. 4. The study of triangles: their angles, lengths and more.
  4. 5. The side adjacent to a given angle in a right-angled triangle.
  5. 6. A special relationship where each input has a single output.