Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 86
triangleAB C, and produce the sides in-definitely. Set off from one angleA, equal intervals at «, &, a\ l>\&c., as required; and throughthese points draw parallels to eachof the sides of the triangle. Thearea will be covered with trianglesas required. For hexagons, or… … ee GEOMETRICAL PEOBLEMS. vals A d, d e, &c., on each line, equal to the breadth of the octagon to bedescribed, and through these points draw parallels to the given lines, to