Spherical Triangle on Earth's Surface = Four Triangles (2)

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Cross Reference

Cross-References

• Bias on One Side of the Line, May'65
• China, May'65
• Omnidirectional, 1954
• Operational, 3 Jan'72
• System, 10 Jul'62
• Three-way Great Circling: Three-way Grid, 17 Feb'72
• Zoneness: System Zoneness, 8 Jan'55
• Background Nothingness, 2 Jun'75
• Windows of Nothingness, (1)