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 77
PROBLEMS ON CIRCLES AND RECTILINEAR FIGURES. Prob. XXXT.—To construct a triangle upon a given straight line orhase, the length of the two sides heing given. First, an equilateral triangle (fig. 121). On the ends A B of the givenline, with A B as radius, describe arcs cutting at C, and draw A C, B C… … Fls. 122. Flp. 121. Second, wlicii flic nidcs arc unequal (fig. 122). Let A D bo the base,and 1) and C tli(> two si<Us. On citlier end, as A, of the base-line, with the GEOMETRICAL PROBLEMS. 57 line B as radius, describe an arc; and on D, with C as radius, cut the arcat E. Draw A E, E D, then…
