American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 56
work depending on it. will be likely, therefore, to be more accurate. Prob. 45.— To construct a regular hexagon on a given diameterAB. Draw a line A B. Bisect A B by a perpendicular line I F, inpoint C. With centre C describe a semicircle on I F and divide itinto three equal parts by applying the… … Prob. 46.— To inscribe an octagon within a given circle. Draw a circle. Then draw any diameter, as A B. Bisect it bya perpendicular C D, thus dividing the circle into four equal parts.Bisect the two upper right angles which are at the centre of A B,and continue the bisecting lines until they cut…
Geometrical drawing
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