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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 55

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 55
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… … fig. 74. 105, a.—Another method. Let A, (Fig. 74,) be the givenrectangle. Extend the side, a b, and make a d equal to a c; * Similar figures are such as have their several angles respectively equal, and their•des respectively proportionate. PRACTICAL GEOMETRY. 39 bisect a d in e ; upon <?, with…

Carpentry · Architecture

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