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    Golden ratio

    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 illustrates the geometric relationship.

    Golden ratio - Wikipedia

    https://en.wikipedia.org/wiki/Golden_ratio

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  2. People also ask
    How to calculate the golden ratio face?
    See the photo below which illustrates the following golden ratio proportions in the human face:
    • Center of pupil : Bottom of teeth : Bottom of chin.
    • Outer & inner edge of eye: Center of nose.
    • Outer edges of lips : Upper ridges of lips.
    • Width of center tooth : Width of second tooth.
    • Width of eye : Width of iris.

    more information...
    The Human Face and the Golden Ratio - The Golden Ratio ...
    www.goldennumber.net/face/
    What is the golden ratio in math?
    The golden ratio, or golden mean, or phi, is about 1.618033989. The golden ratio is the ratio of two quantities such that the ratio of the sum to the larger is the same as the ratio of the larger to the smaller.
    What number is the golden ratio - Answers.com
    www.answers.com/Q/What_number_is_the_golden_…
    Is the golden ratio irrational?
    Any number that cannot be written as a fraction is irrational. So if the Golden Ratio were rational, instead of a never-ending decimal number, you'd see a fraction. The official measurement is (1+sqrt5)/2. sqrt5 is irrational.
    Is Golden ratio a rational or irrational - Answers.com
    www.answers.com/Q/Is_Golden_ratio_a_rational_or_…
    What is the Golden Section?
    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.
    Golden Ratio -- from Wolfram MathWorld
    mathworld.wolfram.com/GoldenRatio.html

  3. 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 ...

    • History

      The golden ratio has been claimed to have held a special fascination for at …

    • Applications and obser…

      De Divina Proportione, a three-volume work by Luca Pacioli, was published …

    • Mathematics

      The golden ratio is an irrational number. Below are two short proofs of …

    • Pyramids

      Both Egyptian pyramids and the regular square pyramids that resemble them …

    • Quadratic Formula

      In elementary algebra, the quadratic formula is the solution of the quadratic …

    • Fibonacci Number

      Because the rational approximations to the golden ratio are of the form F(j):F(j …
    See results only from en.wikipedia.org

  4. 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. It appears many times in geometry, art ...
  5. golden ratio = 1.61803399