Golden Ratio - Math is Fun
https://www.mathsisfun.com/numbers/golden-ratio.html
The golden ratio (symbol is the Greek letter "phi" shown at left) is a special number approximately equal to 1.618.Golden ratio - Wikipedia
https://en.wikipedia.org/wiki/Golden_ratio
In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. The figure on the right ...
Golden Ratio -- from Wolfram MathWorld
mathworld.wolfram.com › Number Theory › Constants › Golden Ratio
by EW Weisstein - 2002 - Cited by 15 - Related articles
The golden ratio, also known as the divine proportion, golden mean, or golden section, is a number often encountered when taking the ratios of distances in simple geometric figures such as the pentagon, pentagram, decagon and dodecahedron.
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