Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 78
em is equal to the difference of their radii ; but if their centres E and D are on the opposite sides of the given line, the distance between them is equal to the l sum of their radii. __i.^_ The point of contact ^ q ^ >. ^ can always be found by joining their centres. 100. To draw four…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
