Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 46
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 b, with a b for radius, describe the arcs, a d and be;bisect the arc, a e, in/; upon e, with e/for radius, describe thearc, c f d; join a and c, c and d, d… … Fig- 61. Fig. 62. 98.— Upon a given line to describe any regular polygon.Let a 6, [Fig. 61, 62 and 63,) be given lines, equal to a side ofthe required figure. From 5, 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 HOUSE-CARPENTER. f eh]…
Carpentry · Architecture
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