What is the ratio of the perimeter of the shaded region to the circumference of the circle?
1
\(\frac 3 4\)
2
\(\frac {4 + \pi} {4\pi}\)
3
\(\frac {2\pi}{4 + \pi}\)
4
\(\frac {4 + \pi} {2\pi}\)
What is the ratio of the perimeter of the shaded region to the circumference of the circle?