The happy couple

Two regular pentagons share a vertex. What’s the angle α?

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Solution

The angle α is 18°.

Please find here the video solution: Video: The happy couple.

Two regular pentagons share a vertex. What’s the angle α? https://t.co/NhZu9Mfruv pic.twitter.com/o0IrKlBfc9
— Mirangu (@Mirangu1) July 31, 2024