Model of a Dissected Trapezoid, Ross Surface Form #6
date: label: date made
content: ca 1895
name: label: maker
content: Ross, W. W.
notes: label: Description
content: This is the sixth in a series of models of plane figures (surface forms) designed by William Wallace Ross, a school superintendent and mathematics teacher in Fremont, Ohio. The unpainted rectangular wooden model is cut into two pieces at one corner. It may be arranged so that the pieces form either a rectangle or a trapezoid. A paper label attached to the model reads: Dissected Trapezoid 5x7.
label: Description
content: Ross argued that the area of the trapezoid equaled half the sum of its parallel sides, multiplied by its breadth.
label: Description
content: Compare models 1985.0112.190 through 1985.0112.202. For further information about Ross models, including references, see 1985.0112.190.
label: Location
content: Currently not on view
place: label: place made
content: United States: Ohio, Fremont
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Science & Mathematics
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content: Arithmetic Teaching
creditLine: label: Credit Line
content: Gift of Wesleyan University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1985.0112.193
label: accession number
content: 1985.0112
label: catalog number
content: 1985.0112.193
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 1 cm x 15 cm x 7.7 cm; 13/32 in x 5 29/32 in x 3 1/32 in