Phi \((\Phi, \phi)\) is a Greek letter that mathematicians have assigned to a specific ratio or proportion, called the golden ratio, that most people find to be attractive in art, architecture, and nature. The golden ratio is illustrated as \(\frac{A}{B}=\frac{A+B}{A}\equiv\phi\). The only positive solution is **…Read the Rest**

## Tag: pentagram

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Archimedean solid cosine cotangent cube cuboctahedron D12 dodecahedron Factoring Fibonacci golden ratio icosahedron icosidodecahedron Law of Cosines Law of Sines Lucas series mach 3 nested radical octahedron Penrose tiles pentagon pentagonal pyramid pentagram phi Ø Platonic solid prism pyramid Radical regular tetrahedron rocket sine SketchUp soccer ball space Square Root tangent tetrahedron triangular pyramid Trigonometry truncated cube truncated dodecahedron truncated icosahedron truncated octahedron truncated tetrahedron vertex edge angle wire frame### Donate

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