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

Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (front side).

There are restrictions for re-using this image. For more information, visit the Smithsonian's Terms of Use page .

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.

View manifest View in Mirador Viewer

Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (front side).
Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (back side).
Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (front side).
Hinged Plane Dissection, Three quadrilaterals and one triangle which can be arranged as a triangle or a quadrilateral (back side).

Object Details

maker

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 rhombus .The pieces on one side have smaller plastic parts on them so that the equilateral triangle and the rhombus both appear to have an inscribed rectangle

A pattern for this model found in 1979.3002.55, folder 1, is dated March 10, 1932. See also 1979.3002.43, folder 2.

Compare MA.304723.813 and MA.304723.814.

Location

Currently not on view

Credit Line

Gift of Helen M. Wheeler

date made

ca 1932

ca 1932 03 10

c. 1932

ID Number

MA.304723.815

accession number

304723

catalog number

304723.815

Object Name

geometric model

Physical Description

plastic (overall material)

wood (overall material)

metal (overall material)

brown (overall color)

red (overall color)

blue (overall color)

hinged (overall production method/technique)

Measurements

average spatial: 1.5 cm x 10 cm x 9 cm; 19/32 in x 3 15/16 in x 3 17/32 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/ng49ca746a9-193b-704b-e053-15f76fa0b4fa

Record ID

nmah_1075815