Demonstration of DESCARTES' Law of Angular Closure Deficit
4 of 6 equilateral coplanar triangles
fold to
One halve of an Octahedron
The Angular Deficit is (1+4/2)*2*60°=360°
- rotate by dragging the mouse -
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(For a detailed discussion visit this site's page: Descartes' Law of Angular Closure Deficit)
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