The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 49
ght angles to a c, draw lines to the opposite part of the circle; this will give the remaining points for the polygon, as h,f, &c. In forming a hexagon, the sides of the triangle erected upona G, (as at Mg. 59,) mark the points h and /. This method oflocating the angles of a polygon is an… … Fig- 61. Fig. 62. Fig. 63. 98.— Tlj^on a given line to describe am,y regular ^polygon. Let a 5, {Fig. 61, 62 and 63,) be given lines, equal to a side of the required figure. From 5, draw h c, at right angles to ah ; upon a and h, with a h for radius, describe the arcs, a c d and f eh I divide a c…
Carpentry · Architecture
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