American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 66
e A B, to construct a regular octagon. Draw a line A B, producing it beyond A and B. At A and Berect perpendiculars to A B. Bisect the right angle to the left ofA and the one to the right of B, making the bisecting lines A H, BC, equal to A B. Draw H C cutting the perpendiculars in 1 and2. From… … .- s
Geometrical drawing
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
