Introduction | Tangent To A Circle | Point Of Contact | Examples

Circles|Tangent To A Circle|Theorem With Examples

Find the area of the quadrilateral formed by common tangents drawn from a point P to the circle x^(2) + y^(2) = 8 and the parabola y^(2) =16x , chord of contact of tangents to the circle and chord of contact of tangents to the parabolas.

Circles with radii 3,4 and 5 touch each other externally.If P is the point of intersection of tangents to these circles at their points of contact,then if the distance of P from the points of contact is lambda then lambda_(2) is

Two circles touch each other externally. Prove that the lengths of the tangent drawn to the two circles from any point on the common tangent lie at the point of contact of two circles are equal .

Two circles touch externally at a point P From a point T on the tangent at P ,tangents TQ and TR are drawn to the circles with points of contact Q and R respectively.Prove that TQ=TR.( FIGURE )

Equation of tangent in parametric form + point of contact)

Position OF point || Director circle || Line and Ellipse || Equation OF tangent || Chord joining two points || Point OF contact,important points