Geometric Model by a. Harry Wheeler, Trirectangular Spherical Triangle

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Description
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.
Location
Currently not on view
date made
ca 1945
unspecified
Wheeler, Albert Harry
maker
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
associated place
United States: Massachusetts, Worcester
Physical Description
plastic (overall material)
white (overall color)
cut and glued (overall production method/technique)
Measurements
average spatial: 5.2 cm x 5.2 cm x 5.2 cm; 2 1/16 in x 2 1/16 in x 2 1/16 in
ID Number
MA.304723.709
accession number
304723
catalog number
304723.709
Credit Line
Gift of Helen M. Wheeler
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Spherical Trigonometry
Data Source
National Museum of American History, Kenneth E. Behring Center

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