Geometric Model by A. Harry Wheeler, Triangle Transformable into Quadrilateral, Plane Dissection
date: label: date made
content: ca 1932
name: label: maker
content: Wheeler, Albert Harry
notes: label: Description
content: The four pieces of this model of a hinged dissection can be arranged as a quadrilateral or as triangle.
label: Description
content: This is model 4X in Wheeler's list of decompositions of polygons (under quadrilaterals). A special case of a square interchangeable with an equilatral triangle is illutrated by models MA.304723.764, MA.704723.766, and MA.304723.819. There is a drawing in 1979.3002.55, folder 1, dated January 20, 1932.
label: Description
content: Compare the unpainted model that is part of 1979.3002.22.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
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content: Plane Dissections
creditLine: label: Credit Line
content: Gift of Helen M. Wheeler
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304723.762
label: accession number
content: 304723
label: catalog number
content: 304723.762
objectType: label: Object Name
content: geometric model
label: Other Terms
content: Dissection
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: red (overall color)
label: Physical Description
content: brown (overall color)
label: Physical Description
content: cut, glued and hinged (overall production method/technique)
label: Measurements
content: average spatial: 1 cm x 16.7 cm x 21 cm; 13/32 in x 6 9/16 in x 8 9/32 in