Uploaded June 2017 | Updated September 2026, 1 week ago

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demonstrations.wolfram.com/ThreeSphericalTrianglesOfEqualArea

The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.

This Demonstration shows three spherical triangles. Triangles ABC and ABC' have a common base and the same area, so they are equivalent by dissection (as shown in Dissection of Two Spherical Triangles with a Common Base). Triangles ABC and A'BC also hav...

Contributed by: Izidor Hafner

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