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there wasn't much to go off of but based of the information you've gave me the answer would be 7.68=6.28

olemakpadu

Actually the circumference of a circle is :

C =2Pir

Where r = radius, the radius term r, was missing in your expression.

C = 2Pir

7.68 = 23.14r

23.14r = 7.68

6.28r = 7.68

r = 7.68 / 6.28

r ≈ 1.223

So in solving for the missing variable, r ≈ 1.223

Hope this explains it.

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