Family Of Circles|Common Tangents to Two Circles|OMR

Common tangent to two circles

Common Tangents of Circles

Position Of Cirlces(And Number Of Common Tangents)|Angle Between Two Circles |OMR

Same Problem on Family OF Circle || Theory OF Common Tangent and Different Position

(ii) The radical axis bisects the common tangents of two circles.

In the diagram above, A,B,P and Q are points of contacts of direct common tangents of the two circles. If angle ACB is 120^@ , then find the angle between the two tangents and angle made by PQ at the centre of same circle.

Two circles of radius 1 and 4 touch each other externally.Another circle of radius r touches both circles externally and also one direct common tangent of the two circles.Then [(1)/(r)]=

The distance between the centres of two circles having radii 8 cm and 3 cm, is 13 cm. The length (in cm) of the direct common tangent of the two circle is