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


This hinged dissection has two triangular pieces that may be arranged to form a triangle in two ways.

The three objects denoted by MA.304723.747, MA.304723.748, and MA.304723.749 together comprise six right triangles (hinged in pairs) which can be arranged as a single triangle divided into segments by perpendicular bisectors. Rearranged, they appear to form a quadrilateral.

The three objects together form model TE in Wheeler's list of decompositions of polygons.

Maker: Wheeler, Albert Harry

Location: Currently not on view

Place Made: United States: Massachusetts, Worcester

Subject: Mathematics


See more items in: Medicine and Science: Mathematics, Science & Mathematics, Plane Dissections


Exhibition Location:

Credit Line: Gift of Helen M. Wheeler

Data Source: National Museum of American History

Id Number: MA.304723.747Accession Number: 304723Catalog Number: 304723.747

Object Name: geometric Model

Physical Description: plastic (overall material)wood (overall material)metal (overall material)yellow (overall color)hinged (overall production method/technique)Measurements: overall: 1.3 cm x 7 cm x 11.5 cm; 1/2 in x 2 3/4 in x 4 17/32 in


Record Id: nmah_1301546

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