) and In this figure two bigger circles `C(0, r)` and `C(O', r')` touch each other. On third circle `C(0", r")` are touching the two bigger circles as well as the common tangent. Then prove

Two circles of radii 9cm and 4cm touch each other externally. Another circle of radius C touchs these two circles and their direct common tangent. Find C.

If two circles S=0 and s'=0 are touch each other externally then

Two circles with radii a and b respectively touch each other externally . Let c be the radius of a circle that touches these two circles as well as a common tangent to the circles. Then

The two circles touch each other if

Circles of radii 36 and 9 touches externally. The radius of the circle which touches the two circles externally and also their common tangent is

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)]=

Circles of radii 2,2,1 touch each other externally.If a circle of radius r touches all the three circles externally,then r is

A circle centered at P with radius 4cm and another circle centered at Q with radius 16cm toucheach other externally.A third circle with centre Ris drawn to touch the first two circles and oneof their common tangents as shown in the figure.Then,the radius of the circle with centre R is:

In the given figure, two circles touch each other externally at the point C. Prove that the common tangent to the circle at C bisects the common tangents at P and Q.

In Figure, two circles touch each other at the point C . Prove that the common tangent to the circles at C , bisects the common tangent at P and Q .