If you've studied the Golden Ratio, you know that it is the most pleasing ratio to the human eye. Studies have been done that asked participants to choose the rectangle they liked the most, and they would almost unanimously choose a Golden Rectangle. I've even seen a fascinating study in human sexuality that showed that people with bodily proportions that are closest to the Golden Ratio are the most sexually attractive. On the flip side, body shapes that were exactly the Golden Ratio seemed alien and weird to subjects, as they are too perfect.
The Golden Ratio, also referred to by the Greek letter Phi, is a ratio that is found all through nature. It can be found in the spiral of a seashell, in many flowers and plants, as well as all over the human body. It can be found within many geometric shapes including, but not limited to, the ratio of line segments upon the pentagram. It is one of the most important concepts in the field of sacred geometry.
I was recently analyzing the Cross and Triangle in the context of looking for the Golden Ratio, as the figure seems pleasant to look upon, and so I presumed it must be present. I was delighted to find that my hypothesis was correct. At first I made some technical drawings, made some measurements, and found that according to my measurements the ratio of the height of the cross to the side of a triangle was the close to the Golden Ratio. Then the hard part was creating a mathematical model that more clearly demonstrates the presence of this Divine Proportion, which just required some initial creative thinking and a bit of trigonometry.
The model I'm using is one based on the cross being a sort of cubical cross (if you fold it up it forms a cube), otherwise known as a calvary cross of six squares, relating to Tiphareth via the number 6. This cross is then made to fit the borders of the triangle to the fullest, where the corners of the cross just touch the legs of the triangle, and the base of the cross is collinear with the base of the triangle. As such:
I then padded the cross with more squares and used the side of one of the squares composing the cross as the base unit for measurement. This is how I was able to calculate the size of the triangle, and various divisions therein, in respect to the cross. As such:
I then extracted the triangle formed at the bottom left vertex of the triangle from the extrapolated rectangle. Based on the fact that the height of the triangle, or the vertical leg, is 3 squares high, we can use the value of 3 units for that leg. The angle of the triangle vertex is 60 degrees, as it is the corner of an equilateral triangle. As the cross meets the triangle at 90 degrees, we can further derive that the top angle of this triangle is 30 degrees.With these calculations, we can fill in the diagram with all lengths.

From the diagram with all the values, I think you can see where I have pulled the following values for the ratio of the side of a triangle to the height of the cross. Phi, the funny looking Greek letter if you're not used to looking at the characters of the Greek alphabet, is the character associated with the Golden Ratio.

So there you have it. The Golden Ratio (Phi) is approximately 1.61803, and the ratio of the side of a triangle to the height of the cross is about 1.61603. They are not EXACTLY the same, but they are super duper close. Make the triangle just an eency weency bit larger and you would have a more precise cross and triangle. Then again, I'm not sure we can get more exact than to 2/1000ths of a unit difference with tools we'd be using to make them.





