What do I mean here with that? Well, drawing a pentagon may appear so simple but it becomes complex to follow a regular path; methods of any kind have been thought. In such a context, it is compulsory to apply the Golden ratio with only straightedge and compass, drawing a composed and complete figure which will express the above idea geometrically, developing the concave and convex pentagon at a time by a sequence like the following.Rather than beginning with a circle, as it looks to be the general practice, we shall continue from the square to obtain the line AD with lenght 1.618, as in the previous figure. |