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# the golden ratio by sc

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## Mr. Stack

on 3 October 2014

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#### Transcript of the golden ratio by sc

CREDITS
mathisfun.com
prezi
the golden ratio
by shea carroll

Who Uses It And Why?
Many artists and architects use The Golden Ratio. This is because they believe that it makes the most beautiful and pleasing shape. Many buildings and artworks have The Golden Ratio in them. One example is the Parthenon in Greece.
The Numbers
As I said earlier The Golden Ratio is an irrational number.There is a special relationship between The Golden Ratio and The Fibanocci Sequence. This is because they are very similar.It is also like Pi but only because they go on forever.
Drawing It
1. DRAW A SQUARE
2.PLACE A DOT HALFWAY ALONG ONE SIDE
3.DRAW A LINE FROM THAT POINT TO AN OPPOSITE CORNER
4.TURN THAT LINE SO THAT IT RUNS ALONG THE SQUARE'S SIDE
(THEN YOU CAN EXTEND THE SQUARE TO BE A RECTANGLE WITH THE GOLDEN RATIO)
Some Examples
Some examples are just as simple as your finger.Othe examples are like a nautilus shell,a tree branch,and a sunflower.
What Is The Golden Ratio?
The Golden Ratio is an irrational number. In fact it is one of the MOST irrational numbers. An irrational number is a number that can't be represented as a simple fraction and the decimal goes on forever without repeating.It is approximately equal to the Greek letter "Phi" (shown below).The Golden Ratio has no pattern.It can be calculated to thousands of decimal places very quickly actually.The Golden Ratio is like Pi and The Fibanocci Sequence.Watch this video so you can understand this better.
Some of The Golden Ratio is
1.61803398874989484820 etc.
THIS IS PHI
Thanks for watching!!! Hope you liked it!!!
If you have any questions you can come ask me.
Full transcript