Positioning Pen for Constructions
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Illustration showing the correct and incorrect position of a right line pen against a T-square, triangle, or straight edge when doing geometric constructions.
Keywords
tool, tools, geometry, triangle, construction, instruments, edges, triangles, Geometric, constructions, T-square, using straight edge, Tsquare, drawing instrumentGalleries
Miscellaneous Math ToolsSource
Kenison, Ervin Mechanical Drawing (Chicago, IL: American School of Correspondence, 1916)
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