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Which rectangle do you like most?

Which rectangle do you like most?. The Golden Ratio. What is it?. The Golden Ratio in life. Quilts. Who noticed the “divine” ratio?.

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Which rectangle do you like most?

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  1. Which rectangle do you like most?

  2. The Golden Ratio What is it?

  3. The Golden Ratio in life

  4. Quilts

  5. Who noticed the “divine” ratio? • Leonardo Fibonacci, who was born in the 12th century, studied a sequence of numbers with a different type of rule for determining the next number in a sequence. He began the sequence with 0,1, ... and then calculated each successive number from the sum of the previous two. This sequence of numbers is called the Fibonacci Numbers or Fibonacci Sequence. The Fibonacci numbers are interesting in that they occur throughout both nature and art. Especially of interest is what occurs when we look at the ratios of successive numbers.

  6. Φ has the value = (√5 + 1)/2 • 1.61803 39887 49894 84820 45868 34365 63811 77203 09179 80576 28621 35448 62270 52604 62818 90244 97072 07204 18939 11374 84754 08807 53868 91752 12663 38622 23536 93179 31800 60766 72635 44333 89086 59593 95829 05638 32266 13199 28290 26788 06752 08766 89250 17116 96207 03222 10432 16269 54862 62…

  7. Fibonacci Numbers and the Golden Section • http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fib.html

  8. Discovering the Golden Ratio • http://www.geom.uiuc.edu/~demo5337/s97b/discover.htm • http://www.geom.uiuc.edu/~demo5337/s97b/art.htm

  9. Fibonacci puzzles • http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fibpuzzles.html#bricks

  10. Now your turn: • What other logos can you find that are golden rectangles? • Where else have you found the golden rectangle? • Explain what the golden ratio is in your own words. • You may search the web, to help you.

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