Rectangle Transformable Into an Obtuse Triangle, Probably a Ross Surface Form

National Museum of American History

Object Details

Ross, W. W.
Description
This is apparently is one 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 three doweled pieces of this unpainted wooden model can be arranged either as a rectangle or as an obtuse-angled triangle.
Compare models 1985.0112.190 through 1985.0112.202. For further information about Ross models, including references, see 1985.0112.190.
Location
Currently not on view
Credit Line
Gift of Wesleyan University
ca 1895
ID Number
1985.0112.195
accession number
1985.0112
catalog number
1985.0112.195
Object Name
geometric model
geometric model
Physical Description
wood (overall material)
Measurements
overall: 1 cm x 18.4 cm x 10 cm; 13/32 in x 7 1/4 in x 3 15/16 in
place made
United States: Ohio, Fremont
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Arithmetic Teaching
National Museum of American History
Subject
Mathematics
Record ID
nmah_694072
Metadata Usage (text)
CC0
GUID (Link to Original Record)
https://n2t.net/ark:/65665/ng49ca746a5-181e-704b-e053-15f76fa0b4fa
Geometric Model - possible Ross Surface Form - Rectangle
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