#MathArtChallenge Day 36: Islamic Geometry 10 Point Star

THE CHALLENGE: To create this star.

MATERIALS NEEDED: In an ideal world, you have a compass and ruler, but sans compass, you just need to do your best to divide a circle into 10 equal pieces. One fabulous participant did this:

I used a right triangle with leg lengths of 8 and 11 cm to produce a 36 degree angle without a protractor. 11tan36 = 7.99. (Close enough) Ss could do the same at home without access to a special tool.

For Instructions, I think you’re probably best off with Samira Mian here:

Although I did attempt to do this thread on twitter wherein I forgot that pentagons and hexagons are different things (I hadn’t had my coffee, it’s not my fault!)

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