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 45
then ^/will be nearly the length of the semi-circle, a d c ; and twice g f will nearly equal the circumferenceof the circle, ab c d^as was required. Lines drawn Irom e, through any points in the circle, as o, oand 0, top, p and/>, will divide gf in the same way as the semi-circle, a d c, is… … Fig. 53. 92, a.—Another method. Let a bf c, {Pig. 53,) be the givencircle. Draw the diameter, a c ; from d, the centre, and at rightangles to a c, draw d b ; join b and c ; bisect be at e; from rf,through e, draw df; then e/added to three times the diameter, PRACTICAL GEOMETRY. 29 will equal the…
Carpentry · Architecture
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