Principles of Nature: towards a new visual language
© copyright 19952015 Wayne Roberts. All rights reserved.
The painting reproduced here is from my book (W. Roberts, 2003), edited and reformatted for the web , e.g. inclusion of relevant hyperlinks. Theorem Ithe Eutrigon Theorem In terms of etu, the new relative units of area,(in the painting) the area of one white triangle (a eutrigon*) equals the sum of the areas of the red and yellow triangles minus the area of the blue triangle. This painting provides a visual proof of a new Pythagoraslike theorem (which I call the Eutrigon Theorem) for triangles in which one angle is always 60°. 
