Uploaded June 2017 | Updated September 2026, 1 week ago

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demonstrations.wolfram.com/ThreeCoplanarBisectorsInUnitSphereConstruction

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Draw a spherical triangle ABC on the surface of the unit sphere S centered at O=(0,0,0). Let B' be the point opposite B on S. Let the sides opposite the corresponding vertices be the arcs a, b, c. Then the bisectors of a, b and c_supp (the supplementary...

Contributed by: Izidor Hafner

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