How Large Is This Angle? – Pentagram Geometry

Math Queen

In this math video I (Susanne) explain how to find the angle alpha in the pentagram. We find the angle in the regular pentagon and use adjacent angles to solve this geometry problem. Mathematics explained. 00:00 Intro – Find the angle 0:09 What’s a Pentagram 2:22 Pentagon 6:11 See you later! My G