Uploaded May 2026 | Updated September 2026, 2 weeks ago

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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!

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