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 394
al tothe angle at E. and the angle at C is equal to the angle at EQUAL TRIANGLES IN PARALLELOGRAMS. 35 F. For if one triangle be applied to the other, the threepoints B, A, C, coinciding with the three points E, D^ F, theline ^ 6^ must coincide with the line EF] the angle at Bwith the angle at E\… … isosceles triangle, of which the sides, A B and A C, are equal.Bisect the angle {Art. 506) BAChy the line A D. Then, theline B A being equal to the line A C, the line A D oi thetriangle E being equal to the line A D oi the triangle F(being common to each), the angle BAD being equal to theangle DA…
Carpentry · Architecture · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
