Mathematics, 01.09.2019 16:30 janiya666
At a zoo, the lion pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 11 m. the inner edge of the sidewalk is a circle with a radius of 9 m.
⦁ write and simplify an expression for the exact area of the sidewalk.
⦁ find the approximate area of the sidewalk. use 3.14 to approximate π
Answers: 1
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