Geometric Model by A. Harry Wheeler, Equilateral Triangle with Inscribed Rectangle or Parallelogram with an Inscribed Square, Plane Dissection

National Museum of American History

Object Details

Wheeler, Albert Harry
Description
The four pieces of this hinged dissection have plastic on both sides and a wooden core. They can be arranged as an equilateral triangle or a square.The pieces on one side have smaller plastic parts on them so that the equilateral triangle appears to have an inscribed rectangle.
This is a special case of Wheeler's model 4K (trapezoid into a triangle) in his list of decompositions of polygons.
Compare MA.304723.813.
Location
Currently not on view
Credit Line
Gift of Helen M. Wheeler
ID Number
MA.304723.814
accession number
304723
catalog number
304723.814
Object Name
geometric model
Physical Description
plastic (overall material)
wood (overall material)
metal (overall material)
red (overall color)
blue (overall color)
brown (overall color)
green (overall color)
hinged (overall production method/technique)
Measurements
average spatial: 1.5 cm x 10.5 cm x 9 cm; 19/32 in x 4 1/8 in x 3 17/32 in
place made
United States: Massachusetts, Worcester
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Plane Dissections
National Museum of American History
Subject
Mathematics
Record ID
nmah_1075804
Metadata Usage (text)
CC0
GUID (Link to Original Record)
https://n2t.net/ark:/65665/ng49ca746a9-4076-704b-e053-15f76fa0b4fa
Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (front side).
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