On pages 148-151 (RG numbers 171-174) of my book, Geometry-Do, I prove the skew angle theorem, some other related theorems and I solve several triangle construction problems.
Are there any structural engineers on Research Gate who have worked with skew bridges? Can you suggest any theorems or triangle constructions that would be useful in the construction of bridges?
I want to make my geometry book as useful as possible to engineering students and I will very much appreciate any suggestions.
Book Volume One: Geometry without Multiplication