Ken's POTW


Right Triangles
Show how to divide each of the following figures into a minimum number of unique right triangles (such that each triangle is different from the others in both rotation and reflection.)
  1. Any triangle. Including:
    1. An isosceles right triangle (into smaller right triangles).
    2. Any other right triangle (into smaller right triangles).
    3. An equilateral triangle.
    4. Any other isosceles triangle.
    5. (Are there other special cases?).
  2. A square.
  3. A pentagon.
  4. A hexagon.

Source: Original.

Solution
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