Triangle on globe : demonstrates a non-Euclidean space. The “spherical triangle” is geometrically inaccurate: see the talk page. A geometrically correct replacement is File:Triangles (spherical geometry).jpg.

Source: en:Image:Triangle_on_globe.jpg

The image uploader (to en:) claims the image was made for Wikipedia. It would be made from en:Image:Karta_över_Paris_på_1910-talet_(ur_Nordisk_familjebok).jpg and en:image:MapL.png.

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