Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 354
from c and d. At g let E^ make the given angle(60°) with the line ge, and produce ittill it meets the arcs from h and e in thepoints B and E. From these pointsdraw lines perpendicular to le till theymeet it in the points h and e. Join a to h and e. Find the points c and d in the same manner,and…
Geometrical drawing
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