Constructive drawing. A text-book for home instruction, high schools, manual training schools, technical schools and universities (1904)
Hanstein, Herman. [from old catalog] · Chicago, New York [etc.] Keuffel & Esser co. · leaf 26
Fig. 5. a. 0 Ham&uins Constniclive Drawing. 36.—Fig. 1.—Pfoblem—To construct a rectangleequivalent to a given trapezoid.Solution.—Let A B C D be the given trapezoid.Bisect rightangularly its altitude L M by tiie lineI K, which bisects also the sides B A and C D in Iand K. Perpendicular to I K,…
Mechanical drawing
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