Six congruent circles are arranged so that each circle is externally tangent to at least two other circles. The centers of these six circles are then connected to form a polygon. If each circle has a radius of 2, then what is the perimeter of this polygon? A. 6 B. 12 C. 24 D. 36. Please show the figure madam to understand properly.

These are the Six Congruent Circles with Centres A,B,C,D,E and F with radius 2 units each.
each circle is arranged in such a way that a circle is tangent to other two circles.

Now the centres of circles are connected and formed a Polygon.
since radius is 2 units,
threfore the line connecting the two circles is 4 units.

AB = 4           BC = 4          CD = 4
DE = 4            EF= 4            FA=4

Perimeter of the polygon is = ?

    AB + BC + CD + DE + EF + FA 
= 4+4+4+4+4+4
= 24

HOPE YOU GOT IT..
THIS IS THAT SIMPLE..☻☺☻☺