Brainlist for the person who gets this right and explains it.
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Answer:
153.9
Step-by-step explanation:
the circumference is equal to the radius times 2 times pi or 3.14
the radius is equal to half the diameter.
39/2=24.5
24.5x2x3.14=153.86 but it tells us to round to the nearest tenth and when rounded it equals 153.9