Chord of contact | Family of circles

Condition of tangency| Family of Circles| Director circle| Chord of contact| Intn of 2 circles

Condition of tangency, Family of Circles, Director circle, Chord of contact, Intn of 2 circles

Chord of contact from a point

Tangent: Pair OF tangent || Length OF tangent || Angle between tangent || Chord OF contact || Director circle || Examples

Questions on chord OF contact || Equation OF circle

From a pt A common tangents are drawn to a circle x^(2)+y^(2)=(a^(2))/(2) and y^(2)=4ax. Find the area of the quadrilateral formed by common tangents,chord of contact of circle and chord of contact of parabola.

If x=3 is the chord of the contact of the circle x^(2)+y^(2)=81, then the equation of the corresponding pair of tangents,is

Property 3: The equation of the family of circles touching the circles and line at their point of contact is

Chord of a circle