BOOK I. Loci. 57 circle be the locus of a point which is at a distance of 15millimetres from B, then C and D are points which fulfilboth conditions, i.e., are 20 millimetres from A and 15millimetres from B. The student ^^411 at once see that as far back as Prop.I. we were covertly using the notion…
Geometry · Geometry, Plane
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.