Answer:
[tex]285.74\ cm^{2}[/tex]
Step-by-step explanation:
we know that
The area of the shaded region is equal to the area of the larger circle minus the area of the smaller circle
so
[tex]A=\pi 10^{2} -\pi 3^{2}=\pi(10^{2}-3^{2})=91\pi\ cm^{2}[/tex]
[tex]91\pi\ cm^{2}=91(3.14)=285.74\ cm^{2}[/tex]
