Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 80
hose radius is equal to the difference of the radii of the givencircles. By Prob. 67 describe a circle to touch the latter circle, pass throughC and touch EF; let O be its centre. Join OC, cutting the circle,centre C, at G ; then the circle with 0 as centre and OG as radiuswill satisfy the required… … £ F 66 PRACTICAL PLANE GEOMETRY chap. 71. Problem.—To describe a circle which shall touch agiven circle, centre G, and a given line AB at a givenpoint T. 1st. Externally. Draw TF z.\\A GD perpendicular to AB.Join DT, intersecting the given circle at E.Produce GE to 0 : then O is the centre of the…