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Another Geometric Puzzle

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Edited by Richard Walker, Thursday, 4 Mar 2021, 13:49

This is from the "Azimuth" website of John Carlos Baez, a mathematician and physics professor at the University of California. He found it at Brian McCartin, Mysteries of the equilateral triangle.

Here is a sketch of the problem. My solution to follow in the Comments on 4 March.

Incidentally John Baez is the cousin of Joan Baez, a progressive and a famous folksinger. Her father, John's uncle, was a con-inventor of the electron microscope.

Permalink 5 comments (latest comment by Casper Smith, Thursday, 4 Mar 2021, 05:40)
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Transit Across a Purple Sun

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This very attractive geometrical puzzle is from Catriona Agg. It looks like there isn't enough information, although there is. See the Comments for my solution.

But even after solving it it still feels as though there is an information deficit somewhere!

Permalink 2 comments (latest comment by Jan Pinfield, Thursday, 4 Mar 2021, 15:07)
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