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Vedmedyk [2.9K]
2 years ago
8

PLEASE ANSWER!

Mathematics
1 answer:
luda_lava [24]2 years ago
8 0
Let R be the greater radius and r be the smaller radius

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

B) = 3.14
=(R^2-r^2)
=(11^2-9^2)
=(121-81)
=*40

That was the simplified expression

Answer = 3.14 * 40 = 125.6m^2
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Answer:

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Step-by-step explanation:


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Step-by-step explanation:

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3 years ago
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Answer:

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