Viewer 17-gons

Our Numberphile video about Gauss and the 17-gon was posted this week.

Here's David's Heptadecagon:

But equally exciting have been these efforts by Numberphile viewers.

Note these are compass and straight edge constructions. That's the point.

@dullahansolo

Charles Via Facebook

@ProgrammerHero

@enfo14

@JosselieNoirel calls this a heptafaildecagon

@kolekracaw used Geometer Sketch Pad

Earlier effort by @kolekracaw

@FordFiesta_

@MrCamago

There's an additional video about the math behind the construction.