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At a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is
a circle (blue) with a radius of 11 m. The inner edge of the sidewalk is a circle (orange) with a
radius of 9 m. Find the approximate AREA of the sidewalk (shaded region between the blue
and orange circles)



PLEASE HELP​

At a zoo the lion pen has a ringshaped sidewalk around it The outer edge of the sidewalk isa circle blue with a radius of 11 m The inner edge of the sidewalk is class=