Answer:
6
Explanation:
Area = πr^2
r = √(area/π)
r = √(28.26/3.14)
r = 3
and we know that,
d = 2r,
d = 2 x 3 = 6
are=A=πr2
28.26/3.14=9
√9=3
3•2=6
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