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Geometric Model by A. Harry Wheeler, Collapsible Spherical Polar Triangle
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This cut and folded tan paper model ishows a spherical triangle inside a circle of the sphere.
National Museum of American History’s own descriptionCredit lineGeometric Model by A. Harry Wheeler, Collapsible Spherical Polar Triangle. Wheeler, Albert Harry. National Museum of American History, Gift of Helen M. Wheeler. CC0.