Constructive Geometry of Plane Curves: With Numerous Examples

AC² asymptotes auxiliary circle bisects the angle centre of similitude centre point centres of circles chord of contact circle centre circles touching conic Conic Sections conjugate diameters conjugate points construction curve being given cutting cutting CB describe a circle describe an ellipse describe an hyperbola determined draw a parabola equal exterior angle foci focus F given circle given Fig given lines given point given straight line given tangent harmonic mean harmonic range homographic involution latus rectum length line joining locus major axis mean proportional meet the directrix opposite sides ordinate parallel perpendicular plane point of contact polar PROBLEM Prop radical axis radius rect rectangle right angle second focus segments shew shewn similar triangles Similarly three given touch the given vertex vertices