For any right triangle ACB the sum of
the areas of the lunes BC and AC is equal to the area of the
triangle.
A lune is a plane figure bounded by two circular arcs of unequal
radii.
Lune of Hippocrates,
Alhazen's Lunes join the fray,
Triangle's measure.
See also:
Geometric Art of Lunes of Hippocrates 1
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Email  by Antonio Gutierrez
