Questions tagged [sangaku]

Sangaku are Japanese geometrical problems or theorems on wooden tablets which were placed as offerings at Shinto shrines or Buddhist temples during the Edo period.

Sangaku are Japanese geometrical problems or theorems on wooden tablets which were placed as offerings at Shinto shrines or Buddhist temples during the Edo period.

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Also for questions concerning Soddy's hexlet.

32 questions
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how to solve this Chosekijio sangaku with three equilateral triangles and three circles?

please, how to solve this particularsangaku? Here, sun is a japanese measure unity. sangakus are part of the japanese tradition and are of interest of math problem solvers and enhusiasts and i've not found a solution, the sangaku is taken from…