Geometric Model by A. Harry Wheeler, Triangle Transformable into Trapezoid (Portion), Plane Dissection

Hinged Plane Dissection, Triangle dissected into two triangles transforms into another triangle.

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Hinged Plane Dissection, Triangle dissected into two triangles transforms into another triangle.
Hinged Plane Dissection, Triangle dissected into two triangles transforms into a quadrilateral .
Hinged Plane Dissection, Triangle dissected into two triangles transforms into another triangle.
Plane Dissection - A Triangle Divided by Median Lines (three id numbers)
Plane Dissection - A Triangle Divided by Median Lines, Rearranged to Form Quadrilateral (three museum id numbers)

Object Details

maker

Wheeler, Albert Harry

Description

This model consists of two triangular pieces hinged at on vertex. It may be arranged as a triangle or a quadrilateral.

There is a model of a triangle with its medians which Wheeler variously designated 6K and 12TD. It consisted of six pieces which arrange to form a triangle. Models MA.304723.745, MA.304723.746 and 1979.0102.189 are the pieces of this partially hinged model.

A drawing ot 12TD, dated April 2, 1932,is in 1979.3002.55 (folder 1).

Location

Currently not on view

Credit Line

Gift of Helen M. Wheeler

date made

ca 1932

ID Number

MA.304723.745

catalog number

304723.745

accession number

304723

Object Name

geometric model

Physical Description

plastic (overall material)

wood (overall material)

metal (overall material)

green (overall color)

hinged (overall production method/technique)

Measurements

average spatial: 1.5 cm x 1.3 cm x 10.4 cm; 19/32 in x 1/2 in x 4 3/32 in

place made

United States: Massachusetts, Worcester

See more items in

Medicine and Science: Mathematics

Science & Mathematics

Plane Dissections

Data Source

National Museum of American History

Subject

Mathematics

Metadata Usage

CC0

Link to Original Record

https://n2t.net/ark:/65665/ng49ca746a9-2aa2-704b-e053-15f76fa0b4fa

Record ID

nmah_1073827