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.)

Any triangle. Including:

An isosceles right triangle (into smaller right triangles).

Any other right triangle (into smaller right triangles).

An equilateral triangle.

Any other isosceles triangle.

(Are there other special cases?).

A square.

A pentagon.

A hexagon.
Source:
Original.
Solution
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