File:Academ Golden ratio and unfolded faces of Platonic dodecahedron.svg

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English: The same partial net of Platonic dodecahedron is visible in this top view, with vertex L.  Here is a geometric sequence of five lengths with common ratio φ, the golden ratio.  The first term of the sequence is denoted by b,  it is the difference between the diagonal length and the side length of a face of the Platonic solid. The fifth term equals  (3 φ + 2) b.

The right bottom image shows a geometric progression of five areas with common ratio φ,  that begins with the area of the green triangle.  The fifth area is the total area of the four triangles in green, pink and blue, that form "a golden triangle" similar to the green or blue one.
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Author Baelde
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26 March 2012

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Date/TimeThumbnailDimensionsUserComment
current08:35, 26 March 2012Thumbnail for version as of 08:35, 26 March 2012945 × 810 (4 KB)Baelde{{Information |Description ={{en|1=The same partial net of Platonic dodecahedron is visible in this top view, with vertex ''L. '' Here is a geometr...

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