Geometrical Model by A. Harry Wheeler, Oblique Spherical Triangle

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Description
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).
Models MA.304723.707 and MA.304723.710 are mirror images.
Location
Currently not on view
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: 2.7 cm x 6.2 cm x 6 cm; 1 1/16 in x 2 7/16 in x 2 3/8 in
ID Number
MA.304723.707
accession number
304723
catalog number
304723.707
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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