Carpentry made easy, or, The science and art of framing, on a new and improved system : with specific instructions for building balloon frames, barn frames, mill frames, warehouses, church spires, etc., comprising also a system of bridge building, with bills, estimates of cost, and valuable tables ... (1857)
Bell, William E · Philadelphia : Howard Challen · leaf 86
he first and second abovementioned. • Demonstrated as follows. The triangle ABC is similar to the triangle DEF, sincethe sides of the one are perpendicular to the sides of the other; consequently the anglesopposite the perpendicular sides are equal. (Geom., Prop. 29.) The side FE, in one triangle,… … j Tuuii.Li--alutilu;.Si;]L rir.b
Carpentry · Bridges
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
