Because the construction of Sacred Geometry loosely follows certain "rules," any accurate variations will contain the Phi ratio (1:1.618) all throughout it. One of the hidden places to find it is within the Platonic Solids, but in an indirect way. The following sketch shows the 5 solids themselves, and a couple of details about each of them.
(Below) To find (just one of the places) the Phi Ratio is hidden within a Dodecahedron, build 3 intersecting rectangles such that each corner of each rectangle meets the very centre of one plane of the dodeca.
(Below) Same idea to find the Phi Ratio in an Icosahedron, except build the rectangles from the vertices rather than the planes. These (and those in the dodeca,) are all called "Golden Rectangles," where their lengths are 1.618, and widths are 1 unit of measure...
If you didn't catch it yet, for a quick glance, please check out Part 1: The Golden Number 1.618 in Sacred Geometry...
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