Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 57
extend the other to A, B, or C,and it will pass through the three given points as required. To make a Square equal to a given Triangle—fig. 5. Let B <f E be the triangle given. Rule.—Extend the side of the triangle B E to O, making E O equal to half thelength of the perpendicular of the triangle… … Triangles and Squares. 0
Engineering · Mechanical engineering
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