[" Three circles 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?

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) .

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

3 circles of radii a, b, c (a lt b lt c) touch each other externally and have x-axis as a common tangent then

3 circles of radii a, b, c (a lt b lt c) touch each other externally and have x-axis as a common tangent then

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 ……

Find the areas of the circles whose radii are (a) 14m (b) 28cm