Geometric Model by A. Harry Wheeler, Polar Triangles

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Description
This cut and glued plastic model is one of several in which A. Harry Wheeler illustrated properties of polar spherical triangles. A sticker on it reads: PT. One polar triangle is inside the other. The vertices are unlabeled. The model is undated and has no Wheeler number.
For a discussion of polar triangles, see MA*304723.159. Compare MA*304723.516 and MA*304723.521.
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)
green (overall color)
orange (overall color)
cut and glued (overall production method/technique)
Measurements
average spatial: 5.5 cm x 8.5 cm x 7.5 cm; 2 5/32 in x 3 11/32 in x 2 15/16 in
ID Number
MA.304723.491
accession number
304723
catalog number
304723.491
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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