Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 78
TANGENTS AND TANGENTIAL ARCS. 65 radius equal to the sum of the radii, i.e. CG + D, draw a circlecutting the given Hne AB in H and N. With centre C, andradius equal to the difference of the radii, i.e. CO - D, draw acircle cutting the given line AB in L and M. With H, L, M,and N as centres, and…
Geometrical drawing · Design · Drawing
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