The American house-carpenter; a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 48
Fig. 60 97.— To describe an equi-lateral rectangle, or square. Leta b, (Fig. 60,) be the length of a side of the proposed square.Upon a and 6, with a b for radius, describe the arcs, a d and b c ;bisect the arc, a e, in/; upon e, with e/for radius, describe thearc, c / d; join a and c, c and d, d… … Fig- 61. Fig. 62. Fig. 63. 98.— Upon a given line to describe any regular polygon.Let a b, (Fig. 61, 62 and 63,) be given lines, equal to a side ofthe required figure. From 6, draw b c, at right angles to a b :upon a and b, with a b for radius, describe the arcs, a c d and 32 AMERICAN…
Carpentry · Architecture
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