With these four numbers, one is pi, I was having funny time with my calculator day after day, as thinking of  circle, sphere, N-dimensional spheres ... If they were a that, those or this one, that one..., how it could be? or what it would be?

Lately, I came across an idea of what if it were an area for a circle? The formula is of course [ pi x radius^2 ]. so, I took these square roots.
 

These are lengths (radiuses) according to the formula (if they were circles). The concept here is length with no unit, but in mathematics,  it treats numbers and concepts themselves and sometimes does not consider their units. Primarily, they were lengths but re-concept secondarily, how about when considered all sorts of concepts. My English is something incorrect. Forgive me..

Here, I felt the number 56.80668... as an angle, which is 1 radian,  whose exact value measured in degree is 57.295... (180deg./pi).  Radian is a unit showing angles and pi radian shows a semicircular travel. The  rest of two seemed sides for triangle. We can determine a shape of triangle with these three conditions.
 

Here is two type of triangles draw able from these values, but this time I mention the half. There are several ways getting all of the values for triangle, they are mathematical,  geometrical, or by mold-lofting. I apply 'addition theorem' this time, which is taught in schools, because the rest of the side is easily found.