Respuesta :

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    C = 2πr
6.28 = 2(3.14)(r)
6.28 = 2(3.14r)
6.28 = 6.28r
6.28     6.28
     1 = r

A = πr²
A = (3.14)(1)²
A = 3.14(1)
A = 3.14 units²
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Answer:

3.14

Step-by-step explanation:

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