The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 46
be thewidth of the opening, and c d the height, of the arc. Extend cd, and make d e equal to c d ; join a and e, also e and b / andproceed as directed above. … 90.—To describe a circle within any g^ven t/riangle, so thatthe sides of the triangle shall be iangical. Let a b c, (Fig. 50,)be the given triangle. Bisect the angles a and b, according toArt. 77; upon d, the point of intersection of the bisecting lines,with the radius, d e, describe the required…
Carpentry · Architecture
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