Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 23
the edge of thetriangle. Fig. 21 showsthe triangles and T squarein position. 10. For drawing par-allel lines that are neithervertical nor horizontal, thesimplest and best way,w^hen the lines are neartogether, is to place one edge of a triangle, as a b, Fig. 22,on the given line cd, and lay the… … Fig. 21 1 o j 1 ^ ^^^^^<^ \ ?^^^^/. v^^^A 1 > K^r \W A 11 7i\ / y^ 1 i o ll Fig. 22 the point ^, through which it is desired to draw the parallelline, hold both triangles stationary with the left hand anddraw the line <f/ by passing the pencil along the edge ab.Should the triangle A extend…
