charlidamelio09567 charlidamelio09567

08-04-2021
Mathematics

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sqdancefan sqdancefan

10-04-2021

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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