Geometric Model by A. Harry Wheeler, Parallelogram Transformable into Trapezoid, Plane Dissection

Geometric Model by A. Harry Wheeler, Parallelogram Transformable into Trapezoid, Plane Dissection

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Description
This wooden hinged dissection has four pieces that can be arranged as a parallelogram or as a trapezoid. The pieces are colored such that the both the trapezoid and the parallelogram have an inscribed parallelogram.
This model is listed on Wheeler's list of decompositions of polygons as "Parallelogram into Trapezoid (Small Size Ralph Holm)." He did not assign it a number.
Location
Currently not on view
Object Name
geometric model
Other Terms
Dissection
unspecified
Wheeler, Albert Harry
maker
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
associated place
United States: Massachusetts, Worcester
Physical Description
wood (overall material)
metal (overall material)
brown (overall color)
black (overall color)
cut, glued and hinged (overall production method/technique)
Measurements
average spatial: 1.1 cm x 14 cm x 6 cm; 7/16 in x 5 1/2 in x 2 3/8 in
ID Number
MA.304723.777
accession number
304723
catalog number
304723.777
Credit Line
Gift of Helen M. Wheeler
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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