An irregular hexagon is inscribed in a circle, and I am interested in finding the measure of one specific interior angle of the hexagon.
If I am not allowed to measure it directly, what is the minimum number of other interior angles that I need to measure?
Were the hexagon not inscribed in a circle the answer would be 5. You'd need to measure all the other angles and then subtract from the angle sum 720 degrees.
Unless I'm missing something, fixing the hexagon by inscribing it in a circle doesn't change anything. Knowing only 4 angles does not fix either of the last two.

Posted by Jer
on 20190403 09:57:08 