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Article
The Area of a Circle
The Physics Teacher
  • Tom Greenslade, Kenyon College
Document Type
Article
Publication Date
1-1-2011
Disciplines
Abstract
The geometrical shapes in Fig. 1 recently came into the Greenslade Collection. The semi‐triangular pieces of wood looked like slices from a pie, each 22.5° in angular width. They were tied together with a thin leather band tacked around their curved surfaces. What is this apparatus?
Citation Information
“The Area of a Circle”, The Physics Teacher, 49, 160 (2011)