Geometric Model by A. Harry Wheeler, Equilateral Triangle Inside Out, Plane Dissection

Geometric Model by A. Harry Wheeler, Equilateral Triangle Inside Out, Plane Dissection

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Description
This model has a wooden center, with plastic glued to both sides. The four pieces may be arranged to form an equilateral triangle two different ways. The model is hinged.
This appears to be model 4TH (Equilateral Triangle Inside Out) in Wheeler's list of decompositions of triangles.
A drawing for this model, dated April 16, 1932, is in 1979.3002.55, folder 2.
Compare MA.304723.811.
Location
Currently not on view
Object Name
geometric model
Other Terms
Dissection
date made
ca 1932
ca 1932
maker
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
plastic (overall material)
wood (overall material)
metal (overall material)
green (overall color)
red (overall color)
blue (overall color)
hinged (overall production method/technique)
Measurements
average spatial: 1.5 cm x 10.3 cm x 8.8 cm; 19/32 in x 4 1/16 in x 3 15/32 in
ID Number
MA.304723.812
accession number
304723
catalog number
304723.812
Credit Line
Gift of Helen M. Wheeler
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Plane Dissections
Data Source
National Museum of American History
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