Write and simplify the exact expression for the area of the sidewalk.

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asked Mar 20, 2020 221k views

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ChrisEenberg · Answer 1 · 2020-03-24T20:09:18+0000

given area of small circle= πr^²= π×9×9= 81π

and area of greater circle= πr^²= π×11×11= 121π

now area of the sidewalk= area of greater circle (-) area of small circle= 121π-81π=40π

40×22/7=125.714m^²

Write and simplify the exact expression for the area of the sidewalk.

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