At Aitor´s request: Gauss´Method for the heptadecagon.

Tne link below shows how to draw a polygon of seventeen sides, the heptadecagon. This method is based on the original Gauss´ Method discovered in 1976. This simplification was developed by H. W. Richmond in 1893.

Before starting to try the exercise, I have to say that there is a mistake in the fourth step:

APG angle ≠ 45º.

EPG angle = 45º.

Said that, lets try!:

http://divulgamat2.ehu.es/divulgamat15/index.php?option=com_content&view=article&id=7125%3A57-el-poligono-regular-de-gauss&catid=36%3Ahisto-de-problemas-de-tipo-b&directory=67