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

If two circles of radius 4cm and 1cm touch each other externally then length of the direct common tangents 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)]=

Two circles of radii a and b touch each other externally and theta be the angle between their direct common tangents (a>b>=2) then

If the four equal circles of radius 3 cm touch each other externally, then the area of the region bounded by the four circles is

Statement 1 : The number of common tangents to the circles x^(2) +y^(2) -x =0 and x^(2) +y^(2) +x =0 is 3. Statement 2 : If two circles touch each other externally then it has two direct common tangents and one indirect common tangent.

The minimum number of common tagnents drawn to two circles when both the circles touch each other externally is

Two circles with radii a and b touch each other externally such that theta is the angle between their direct common tangent (a>b>=2), then

If two circles touch each other (internally or externally); the point of contact lies on the line through the centres.

If two circles touch each otner externally, then the number of transverse common tangents is __________.