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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 50

An illustration from 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, leaf 50
g the other at g ; join g and e ; upon / and g, with d b 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… … 101.— To make a parallelogram equal to a given triangle. Let ab c, {Fig. 67,) be the given triangle. From a, draw a rf, at right angles to be; bisect a d in e ; through e, draw fg^ parallel to b c ; from b 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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