The perimeter of △ ABC is 16. The end points of the three sides of △ ABC are connected to form a triangle, and then the midpoint of each side of the new triangle is connected to form a second triangle. And so on, the perimeter of the second triangle is 2006 power of A1 / 2 2007 power of B1 / 2 2008 power of C1 / 2 2009 power of D1 / 2

The perimeter of △ ABC is 16. The end points of the three sides of △ ABC are connected to form a triangle, and then the midpoint of each side of the new triangle is connected to form a second triangle. And so on, the perimeter of the second triangle is 2006 power of A1 / 2 2007 power of B1 / 2 2008 power of C1 / 2 2009 power of D1 / 2

C1=1/2*16=1/2*2^4=(1/2)^-3
C2=(1/2)^2*16=(1/2)^-2
Then CN = (1 / 2) ^ (n-4)
C2012=(1/2)^2008