Geometric Model by A. Harry Wheeler, Polar Spherical Triangles

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Geometric Model by A. Harry Wheeler, Polar Spherical Triangles
Geometric Model by A. Harry Wheeler, Polar Spherical Triangles
Geometric Model by A. Harry Wheeler, Polar Spherical Triangles

Object Details

maker

Wheeler, Albert Harry

Description

This cut and folded tan paper model is one of several in which A. Harry Wheeler illustrated properties of polar spherical triangles. A sticker on it reads: PTb^*. One polar triangle is inside the other. The vertices of the outer triangle are labeled A, B, and C. The vertices of the inner triangle are labeled A₂, B₂, and C₂. The model has no Wheeler number. It also is marked: See STRIA(1)²

For a discussion of polar triangles, see MA.304723.159.

Location

Currently not on view

Credit Line

Gift of Helen M. Wheeler

date made

1920 04 06

ID Number

MA.304723.666

accession number

304723

catalog number

304723.666

Object Name

Geometric Model

Physical Description

paper (overall material)

tan (overall color)

cut and folded (overall production method/technique)

Measurements

average spatial: 5.5 cm x 9.5 cm x 8 cm; 2 5/32 in x 3 3/4 in x 3 5/32 in

place made

United States: Massachusetts, Worcester

See more items in

Medicine and Science: Mathematics

Trigonometry

Science & Mathematics

Spherical Trigonometry

Data Source

National Museum of American History

Subject

Mathematics

Metadata Usage

CC0

Link to Original Record

https://n2t.net/ark:/65665/ng49ca746a9-2564-704b-e053-15f76fa0b4fa

Record ID

nmah_1073386