Circular rosette-like pattern made with 12 overlapping congruent circles tangent to a center circle…

Circular rosette-like pattern made with 24 overlapping congruent circles tangent to a center circle…

Circular rosette-like pattern made with 48 overlapping congruent circles tangent to a center circle…

Illustration of two circles that are tangent to each other, the line of center passing through the point…

Illustration of tangent circles. One circle is said to be tangent to another circle when they touch…