Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 51
ne AB, to construct a regular octagon. At A and B erect the perpendiculars AC and BD. ProduceAB to E. Bisect theangle DBE by the lineBF. Make BF equal toAB. From F draw theline FH parallel to AB,and make KH equal toLF. Join AH. Set offon AC and BD, frompoints A and B, a lengthequal to H F, which… … 48. In a given circle to inscribe a nonagon. Draw the diameters AB and CD perpendicular to each other.With A as centre,and radius AE, drawthe arc cutting thecircle in F. With Bas centre, and radiusBF, draw the arccutting CD producedin G. With G ascentre, and radiusGA, draw the arccutting CD in…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
