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 105
d, however, show in theplan {b) as far as they exist below the cutting plane ab, andthe plane of the upper surface of the truncated pyramidappears as an irregular octagon. Draw the octagonalplan ib) and the two elevations (a) and {c), the completediameter of the base being about 2\ and the altitude… … Time consumed rnexecuting this sheet Name of Student, Class IMtgy-sand Number 26 §2 PROJECTION DRAWING 27 perpendicular lines until they intersect the same elementsrepresented in the plan as d.\\ gx, kx, etc. Connectingthese points of intersection presents the plan of the sectioncut by the plane a…
