The American house carpenter. A treatise on the art of building. Comprising styles of architecture, strength of materials, and the theory and practice of the construction of floors, framed girders, roof trusses, rolled-iron beams, tubular-iron girders, cast-iron girders, stairs, doors, windows, mouldings, and cornices; together with a compend of mathematics. A manual for the practical use of architects, carpenters, stair-builders, and others (1880)
Hatfield, R. G. (Robert Griffith), 1815-1879, Hatfield, O. P., ed · New York, J. Wiley & sons · leaf 393
of 90 degrees, and IJK 30, then the angles GBC andHEF will be each equal to 90 and 30 added, viz., 120degrees. 337-—Proposition.—Triangles that have two of theirsides and the angle contained between them respectivelyequal, have also their third sides and the two remaining … angles equal; and consequently one triangle will every wayequal the other. Let ABC {Fig. 253) and D E F he twogiven triangles, having the angle at A equal to the angle atD, the side A B equal to the side D E, and the side A Cequal to the side D F\ then the third side of one, B C, is equalto the…
Carpentry · Architecture · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
