# Golden ratio #ShoMinamotoProblems ShoMinamoto: Before I start this discussion let me Introduce myself. My name is Sho Minamoto otherwise known as Pi face. And this is me introducing an "zetta" outstanding number which they call GOLDEN RATIO.

Golden Ratio The golden ratio also is called the golden mean or golden section (symbol is the Greek letter "phi" shown at left). It is a special number approximately equal to 1.618., It appears many times in geometry, art, architecture and other areas.

The Idea behind it

We find the golden ratio when we divide a line into two parts so that:

The longer part divided by the smaller part

Is also equal to

The whole length divided by the longer part

[a/b]=[(a+b)/a]

And it gets [(1+sqrt(5))/2]

And it keeps on getting interesting when we relate it to geometric figures.

Sho Minamoto: So do you find it interesting ? I find it interesting. try watching https://www.khanacademy.org/math/geometry/intro_euclid/v/the-golden-ratio 6 years, 7 months ago

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