Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 141
rig. 297 distance around the prism. At each of the points a line is drawn equal to the long edge of the prism and the ends joined together. Then the two ends of the prism are measured out as shown. i The development of the lateral surface of a hexagonal prism … Hy — < 7 N \/ > 35 26 ^ 3 r/g. e9& is shown in Fig. 298. First lay off in a straight line and in properorder the edges 1-2, 2-3, etc., all the way around the prism asshown at the right. At points 1,2,3, etc., draw the perpendicularsequal in length to the edges of the prism, thus obtaining…
Mechanical drawing
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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-93-170.webp)
