[" Q3.Three circle is of radii a,b,c "(a

A line is tangent to three circles with radii a b,c (a>b>c) as shown.Then,which of the following is true?

A = (0,0 ) , B=( 4,0 ) ,C= ( 0,6) are the three centres of three circles of equal radii which do not touch externally pairwise. Then the radical centre of the circles is

Three circles whose radii are a,b and c and c touch one other externally and the tangents at their points of contact meet in a point. Prove that the distance of this point from either of their points of contact is ((abc)/(a+b+c))^(1/2) .

Three circles whose radii are a,b and c and c touch one other externally and the tangents at their points of contact meet in a point. Prove that the distance of this point from either of their points of contact is ((abc)/(a+b+c))^(1/2) .

A, B, C are the centres of three circles of equal radii which donot touch extranally pairwise whose centers are non-collinear. The radical centre of the circles for triangle ABC is

Find the radius of the circle whose area is equal to the sum of the areas of three smaller circles of radii 3 cm , 4 cm and 12 cm .

Three circles of radii 1,2,3 touch other externally.If a circle of radiusr touches the three circles,then r is

In the figure , two concentric circles of radii a&b(a>b) are given.The chord AB of larger circle touches the smaller circle at C .The length AB is :

Two concentric circles of radii a and b (agtb) are given . The chord AB of larger circle touches the smaller circle at C, the length of AB is ……