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January 22nd, 2016, 01:53 PM  #1 
Newbie Joined: Jan 2016 From: Australia Posts: 1 Thanks: 0  Isn't every ngon inscribed in a given circle constructible?
Can't you just construct a line that is 6 times the radius of the circle. Then nsect the line and use the length of the section as the side length of your ngon?

January 22nd, 2016, 04:22 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,931 Thanks: 2207 
No.

January 23rd, 2016, 12:25 PM  #3 
Newbie Joined: Jan 2016 From: England Posts: 24 Thanks: 0 
If you do 360/n then draw radii separated by angle 360/n then connect the ends you have your ngon

January 23rd, 2016, 01:49 PM  #4 
Global Moderator Joined: May 2007 Posts: 6,807 Thanks: 717 
"Constructible" usually means by ruler and compass. To get an arbitrary angle you need a protractor.


Tags 
circle, constructible, construction, geometry, inscribed, ngon 
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