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2 years ago

HELP PLEASE WILL GIVE BRAINLIST

Mathematics

1 answer:

rodikova [14]2 years ago

4 0

Answer:

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

Step-by-step explanation:

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