Friday, May 6, 2011

May Math Forum Project: Pentagon from a Circle

I ran across this nice animation on creating a pentagon from a circle (taken from Wikipedia):


I thought this would make a great Math Forum project, and I just posted it as this month's free project.

It's a neat exercise in 2D thought: starting with one common object, a circle, and without knowing any numbers or angles, creating all the necessary lines to make a pentagon.

The Student Version has a question at the end about the number of circle segments you need to use for this project. The Teacher Version has the answer.

Enjoy!


Anyone can design anything in 3D! http://www.3dvinci.net/

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