Geometric Model by A. Harry Wheeler, Angle Bisectors of a Triangle (Portion), Plane Dissection

Description:

This hinged model has two triangular pieces with a greenish plastic top.

The four triangular pieces of two models denoted by MA.304723.755 and MA.304723.760 may be arranged to form a parallelogram (in two ways) and a triangle (in two ways). They form a partially hinged dissection.

Objects MA.304723.755, MA.304723.760, and MA.304723.804 form model 6TQ (angle bisectors of a triangle). A drawing for this model, dated April 23, 1932, is in 1979.3002.55, folder 2.

This model alone also illlustrates Wheeler's model 2TT, an obtuse triangle converted into an acute triangle with the same base. A drawing for this model, dated April 26, 1932, is in 1979.3002.55, folder 2. Another related drawing in the same folder is dated April 3, 1932.

Date Made: ca 1932

Maker: Wheeler, Albert Harry

Location: Currently not on view

Place Made: United States: Massachusetts, Worcester

Subject: Mathematics

Subject:

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

Exhibition:

Exhibition Location:

Credit Line: Gift of Helen M. Wheeler

Data Source: National Museum of American History

Id Number: MA.304723.760Accession Number: 304723Catalog Number: 304723.760

Object Name: geometric model

Physical Description: plastic (overall material)wood (overall material)metal (overall material)green (overall color)brown (overall color)cut, glued and hinged (overall production method/technique)Measurements: average spatial: 1.3 cm x 13 cm x 9 cm; 1/2 in x 5 1/8 in x 3 17/32 in

Guid: http://n2t.net/ark:/65665/ng49ca746a9-2cb7-704b-e053-15f76fa0b4fa

Record Id: nmah_1074274

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