Sagot :
In most cases, two circles have four common tangents. If the circles are tangent , then they will have three common tangents, but this can be understood as a degenerate case: as if the two tangents coincided.
In most cases, two circles have four common tangents. If the circles are tangent , then they will have three common tangents, but this can be understood as a degenerate case: as if the two tangents coincided.