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Alex787 [66]
2 years ago
10

I need help what is the answer

Mathematics
1 answer:
Natalija [7]2 years ago
4 0

9514 1404 393

Answer:

  6π

Step-by-step explanation:

The circumference of a circle is given by the formula ...

  C = πd

The arc length of a semi-circle is half that, so is ...

  arc length = (1/2)πd = 1/2·π·12 = 6π . . . units

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