Added pentagon example

pentagon.tex

@@ -0,0 +1,40 @@
+\documentclass[]{article}
+
+\usepackage{tikz}
+\usetikzlibrary{calc}
+
+% From https://tex.stackexchange.com/questions/308849/draw-regular-pentagon-in-tikz
+
+\begin{document}
+
+\newcommand{\downpent}[2][blue!50!gray,draw=white,thick]% [options], list of direction steps e.g {10/2/1/1}
+{   
+\coordinate (temp) at (0,0);
+\foreach \p in {#2}
+{   \foreach \s in \p
+    {   \coordinate (temp) at ($(temp)+(\s*36-18:1)$);
+    }
+    \fill[#1] ($(temp)+(54:0.618)$) -- ($(temp)+(126:0.618)$) -- ($(temp)+(198:0.618)$) -- ($(temp)+(270:0.618)$) -- ($(temp)+(342:0.618)$) -- cycle;
+    \coordinate (temp) at (0,0);
+}
+}
+ \newcommand{\uppent}[2][blue!50!gray,draw=white,thick]% [options], list of coordinates e.g {1,2},{1,3},{4,2}
+{   
+\coordinate (temp) at (0,0);
+\foreach \p in {#2}
+{   \foreach \s in \p
+    {   \coordinate (temp) at ($(temp)+(\s*36-18:1)$);
+    }
+    \fill[#1] ($(temp)+(-54:0.618)$) -- ($(temp)+(-126:0.618)$) -- ($(temp)+(-198:0.618)$) -- ($(temp)+(-270:0.618)$) -- ($(temp)+(-342:0.618)$) -- cycle;
+    \coordinate (temp) at (0,0);
+}
+}
+
+\begin{tikzpicture}
+\downpent[orange,draw=white,thick]{{2},{4},{6},{8},{10},{10,1,10}}
+\uppent[cyan!50!blue,draw=white,thick]{{},{10,1},{10,1,10,3},{10,1,10,1},{10,1,10,9},{10,1,10,7}}
+\foreach \a [count=\c] in {18,54,...,342} \draw[->,thick] (0,0) -- (\a:1cm) node[label=\a:\c] {};
+\end{tikzpicture}
+
+
+\end{document}