Keywords: Golden-triangles-pentagram.svg Pentagram with the vertex angle of <math>\theta \cos -1 \left \varphi \over 2 \right 36 \circ</math> where <math>\varphi</math> is the golden ratio In the diagram <math>a \approx 161 8</math> and <math>b 100</math> 2012-12-19 11 01 59 own Krishnavedala validSVG HandSVG cc-zero Uploaded with UploadWizard Golden triangles Pentagrams |