Pappus's Theorem deals with collinearity in this polygon, and the regular variety of this polygon is an orthogonal projection
Pappus's Theorem deals with collinearity in this polygon, and the regular variety of this polygon is an orthogonal projection of a 5-simplex. The nth number of this type is equal to two times n squared minus n, and it has the most sides of any regular polygon which can (*) tile the plane. For regular polygons of this type, the longest diagonal is twice as long as a side, and the exterior angle is 60 degrees, meaning that each interior angle is 120 degrees. For ten points, give the general name for a six-sided polygon.
Pappus's Theorem deals with collinearity in this polygon, and the regular variety of this polygon is an orthogonal projection of a 5-simplex.