11. Conversely, every two-graph can be represented as a set of equiangular lines. 12. A crossed rectangle is not equiangular . 13. Rectangles, including the square, are the only equiangular quadrilaterals ( four-sided figures ). 14. Triactines and tetractines are equiangular and equiradiate; their actines are slightly conical, with blunt tips. 15. However, some equiangular sundials such as the Lambert dial described below are based on other principles. 16. Being equilateral is a material consequence of being an equiangular triangle, but not of being an equiangular quadrangle. 17. Being equilateral is a material consequence of being an equiangular triangle, but not of being an equiangular quadrangle. 18. :Are you talking about a " convex " equiangular polygon that has 10 right angle corners? 19. Given a set of equiangular lines, let " c " be the cosine of the common angle. 20. :: I've run into several people who thought that the golden ratio is in every equiangular spiral!
