Respuesta :

Answer:

about 25.13

Step-by-step explanation:

because 4×pi×2=25.13

Answer:

C ≈ 25.13

r Radius 4

Step-by-step explanation:

C = 2πr = 2 · π · 4 ≈ 25.13274

umm sorry if this is wrong...

have a great day

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