Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 198
Fio:. 312. Problem 202.To construct an Archimedean sjnral of one revolution.Draw a circle and divide it by radii into any number of o Cl-^ … 178 PRACTICAL PLANE GEOMETRV equal parts, say twelve (Prob. 14), a, h, c, d, etc. Divide theradius o into a corresponding number of equal parts 1, 2, 3, 4,etc. (Prob. 10). Prom the centre of the circle, with radius 1,draw an arc till it meets the radius a in A, and from 2 till itmeets the radius h…
Geometrical drawing
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