13 July 2017

Hexagon geometry puzzle


This one you can do in your head.  That's what I did.  Got it wrong, but I was really, really, close...

For the answer, go to Brilliant or to Data Genetics.

2 comments:

  1. HumbabaJuly 13, 2017 at 11:54 PM

    Woo, got it right!

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  2. pentalithJuly 15, 2017 at 11:19 AM

    It helps to draw a line from the center of the regular hexagon, bisecting the shaded region, and out to the edge of the hexagon. Doing so creates 6 identical small triangles that take up one sixth of the area of the hexagon, top left. So 2/6 times 1/6 = 2/36 = 1/18.

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