Investigation of the Golden Ratio.

by: Kelli Nipper

Click Here to see a script that divides any segment into the golden ratio.
Using this script, I created a rectangle whose sides are in the golden ratio (called a "golden rectangle").

I found the following:
If you cut a square (with side of the smaller side of the rectangle) out of the golden rectangle, you are left with another (smaller) golden rectangle.


If you add a square to the larger side of a golden rectangle, you get another (larger) golden rectangle.


Click Here to see a GSP script that constructs a regular pentagon given a diagonal.


The ratio of the length of a diagonal to one side in a regular pentagon is the Golden ratio.


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