ABC is an equilateral triangle. P, Q, and R are the mid-points of sides AB, BC and CA, respectively. If the length of the side of the triangle ABC is 11 cm, then the area (in cm2) of \(\triangle\)PQR is:
1
\(\quad \frac{21 \sqrt{3}}{16}\)
2
\(\quad \frac{11 \sqrt{3}}{16}\)
3
\(\quad \frac{121 \sqrt{3}}{16}\)
4
\(\quad \frac{111 \sqrt{3}}{16}\)