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Geometric Model by a. Harry Wheeler, Trirectangular Spherical Triangle
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Geometric Model by a. Harry Wheeler, Trirectangular Spherical Triangle

Wheeler, Albert Harry · ca 1945 · plastic (overall material)

From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.

About this work

This small plastic mode consists of three quadrants of a disc with a common center glued together at right angles to form a spherical triangle with three right angles. Such spherical triangles are called trirectangular. A sticker on the model reads: TR.ST.

National Museum of American History’s own description
Subjects
ModelsMedicine and Science: Mathematics
Credit lineGeometric Model by a. Harry Wheeler, Trirectangular Spherical Triangle. ca 1945. Wheeler, Albert Harry. National Museum of American History, Gift of Helen M. Wheeler. CC0.
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