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Geometrical Model by A. Harry Wheeler, Oblique Spherical Triangle
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This small plastic model is of a scalene oblique spherical triangle. It consists of three discs of a sphere with a common center, whose straight edges are glued together to form the spherical triangle. None of the angles between the discs is a right angle (hence the triangle is oblique) and the three angles are unequal (hence the triangle is scalene).
National Museum of American History’s own descriptionCredit lineGeometrical Model by A. Harry Wheeler, Oblique Spherical Triangle. Wheeler, Albert Harry. National Museum of American History, Gift of Helen M. Wheeler. CC0.
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