If two circles are touching externally, how many common tangents of them can be drawn ?

If two circles touch externally , how many common tangents can be drawn to them ?

Two circles when touch externally, the number of transverse common tangents that can be drawn is :

If two circle touch externally, then the number of their common tangents will be

Two circles touch internally at P.How many tangents can be drawn to the circles from an external point? What is the relation between the tangents?

Two circles intersect each other. Then the total number of common tangents that can be drawn to them is :

Two circles touch each other externally. Prove that the lengths of the tangent drawn to the two circles from any point on the common tangent lie at the point of contact of two circles are equal .