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 55
. 78. 38 AMERICAN HOUSE-CARPENTER. a c, will be the diameter of a circle, C, which will be equal inarea to the two circles, A and JB, added together. Any polygonal figure, as A, (Fig. 72,) formed on the hypo-thenuse of a right-angled triangle, will be equal to two similarfigures,* as B and C*,… … 105.— To construct a square equal to a given rectangle.Let A, (Fig. 73,) be the given rectangle. Extend the side, a 6,and make b c equal to b e; bisect a c in/, and upon/, with theradius, / a, describe the semi-circle, age; extend e b, till itcuts the curve in g; then a square, b g h d, formed on…
Carpentry · Architecture
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