If the area of the circle /  0,19653784443935582151738964 
and the square [side = 1] area /  / 0,25 = 
the constant ratio between the areas will be  0,78615137775742328606955857 
that's to say
√
 √0,61803398874989484820459

this is not reflected by the current value of π  

where the area of the circle / is
 0,19634954084936207740391521 
with a circle / square ratio:  0,78539816339744830961566084 
Conversely, applying the reverse process:
0,25 / 0,196537844439355821517389645  
ie ^{square}/_{circle} we obtain  1,27201964951406896425242247 
that is obviously
√
 √1,61803398874989484820459

marvelous proof of the translation from Transcendent to Immanent
and of the inverse transduction, which are reflected so to say below and above the 1
where the synthesis of the two processes or their direct multiplication is equivalent to the UNITY and their sum to the √5 , which introduces the becoming.
et quod est Superius est sicut quod est Inferius, ad perpetranda Miracula Rei Unius «Smaragdina Hermetis Tabula» di Hermes Trismegistus
dalla vers. lat. di H. Kunrath  
What can finalize not only space, but also past and future  
in fact is manifested in the formula:


for its univocal solution:  Φ ×(Φ+1) =1, as φ ×(φ1) =1 
If the triangle is three [spirit], the square is four [matter] and the pentagon is five [transformation], we will have to think of the circle as One [Source of being] with the center zero, and thus attribute the two to the extremities of the simple segment [duality, transit, polarity, comparison, connection].
We see then wonderfully interconnected the imprints of the first five forms: a symmetrical side of the triangle (the most significant ^{ }), the square and the pentagon virtually contained and perfectly manifestable, with ruler and compass, in the perfect potentiality of the uniqueness of the circle, from which all the others derive. 