The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 418
ymbol is to be taken. Thus, c? = aa,a*=aaa a = a a a a/ is the radical sign, and denotes that the square root of the quaifollowing it is to be extracted, and51 4 APPENDIX. •v/ denotes that the cube root of the quantity following it is to be ex-tracted. Thus, V9 = 3, and -^27 = 3. The extraction of… … Ffg.8«<L In Fig. 366, where AB is the radius of the circle B Off, draw aline A F, from A, through any point, (7, of the arc B G. From C drawCD perpendicular to A B ; from B draw B E perpendicular to A B ;and from G draw G F perpendicular to A G. Then, for the angle F A B, when the radius A C…
Carpentry · Architecture
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