With the construction of the golden section in the red square you find a point that differs from the navel. [br]And what do you get when constructing a circle with radius [math]\varphi[/math]?[list][*]Draw with 1 as the side of the square 1 a horizontal line at the height [math]\varphi[/math] and define the center of the circle.[/*][*]Drag the slider and construct a circle through the heel of the Vitruvian man.[/*][/list]What do you find?