How to teach paper-folding and cutting: a practical manual-training aid (1892)
[Litchfield, Norma MacLeod] [from old catalog] · Lebanon, Ohio, March brothers · leaf 94
rf /V-^^- M. /cS>^ lar faces, the triangles being isosceles, not equilateral.By using plan No. 130, and prolonging the arcs inwhich each set of four triangles is drawn, until the … Fog.M/dd. 92 PAPER-FOLDING AND CUTTING. circle is complete, also completing the hexagon ineach circle, yon will have altogether twelve equilat-eral triangles. These triangles, cut and pasted, will
Paper work
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-115-307.webp)
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-244-434.webp)
