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 51
e other at g ; join g and e ; upon / and g, with d h and a b for radius, describe arcs intersecting at h ; join g and A, also h and /; then Fig. 66 will every way equal Fig. 65. So, right-lined figures of any number of sides may be copied,oy first dividing them into triangles, and then proceeding… … 101.— To make a parallelogram equal to a given triangle. Let a b c, {Fig. 67,) be the given triangle. From a, draw a d, at right angles to be; bisect a d in e ; through e, draw/^, parallel to 6 c ; from 6 and c, draw b f and c g, parallel to d e ; then bfgc will be a parallelogram containing a…
Carpentry · Architecture
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