Answer:
[tex] 397.16 \: cm^{2} [/tex]
Step-by-step explanation:
Since, rectangle is inscribed in a circle with radius 12 cm.
Therefore,
Area of shaded region = Area of circle - Area of rectangle
[tex] = \pi {r}^{2} - lw \\ = 3.14 \times {12}^{2} - 5 \times 11 \\ = 3.14 \times 144 - 55 \\ = 452.16 - 55 \\ = 397.16 \: {cm}^{2} [/tex]