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damaskus [11]
3 years ago
10

Please help

Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:

125.6m^2

Step-by-step explanation:

Let R be the greater radius and r be the smaller radius

Area of the sidewalk = R^2 - r^2 - This can be the expression

= 3.14

=(R^2-r^2)

=(11^2-9^2)

=(121-81)

= 40

= 3.14 x 40

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sdas [7]
<h2>question :</h2>

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<h2>my answer :</h2>

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3 years ago
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Nataly_w [17]

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4 0
3 years ago
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8 0
3 years ago
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inysia [295]
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7 0
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