Painting - Heptagon 1:3:3 Triangle

Description:

This painting is part of Crockett Johnson's exploration of the properties of the heptagon, extended to include a 14-sided regular polygon. The design of the painting is shown in his figure, which includes many of the line segments in the painting. Here Crockett Johnson argues that the triangle ABF in the figure is the one he sought, with angle FAB being one seventh of pi. Segment CD in the figure, which appears in the painting, is the length of the edge of a regular 14-sided figure inscribed in a portion of the larger circle shown.

The painting, of oil or acrylic on masonite, is number 105 in the series. It is drawn in shades of cream, blue, and purple on a light purple background. It has a metal frame and is unsigned.

Date Made: ca 1973

Painter: Johnson, Crockett

Location: Currently not on view

See more items in: Medicine and Science: Mathematics, Science & Mathematics, Crockett Johnson, Art

Exhibition:

Exhibition Location:

Credit Line: Ruth Krauss in memory of Crockett Johnson

Data Source: National Museum of American History

Id Number: 1979.1093.72Catalog Number: 1979.1093.72Accession Number: 1979.1093

Object Name: painting

Physical Description: masonite (substrate material)metal (frame material)Measurements: overall: 77 cm x 41 cm x 2.5 cm; 30 5/16 in x 16 1/8 in x in

Guid: http://n2t.net/ark:/65665/ng49ca746a5-2085-704b-e053-15f76fa0b4fa

Record Id: nmah_694696

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