How to teach paper-folding and cutting: a practical manual-training aid (1892)
[Litchfield, Norma MacLeod] [from old catalog] · Lebanon, Ohio, March brothers · leaf 59
this dotted line and open the paper^ Illustration No.76 shows the result of our folding and cutting, a per-fect six-sided figure, or hexagon. For the pentagon,even greater care is necessary, for instead of foldinginto equal parts, we fold so as to have two equal parts,and a part equal to half of… … Fold the squares as for the hexagon (see figure No. 77),and then double the paper over until it presents theappearance shown in figure No. 78. Form the isos-celes triangle as in the previous polygon by drawing POLYGONS. 57 through B-C. Opening the folded paper, a pentagonappears as represented in…
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-127-351.webp)
