To dissect the octagon, move slider alpha to the extreme right and then move slider v to the extreme right.

Reference:

Reference:

“Two-Octagons-into-One Dissection in Two Steps” from the Wolfram Demonstrations Project

http://demonstrations.wolfram.com/TwoOctagonsIntoOneDissectionInTwoSteps/

http://demonstrations.wolfram.com/TwoOctagonsIntoOneDissectionInTwoSteps/

Contributed by: Izidor Hafner

Based on work by: Greg N. Frederickson

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