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Mathematics, 05.05.2020 02:03 smeeden

Given the standard formula of a circle is x^2 + y^2 = 9, what is the circumference of the circle?

A. 6 pi units
B. 18 pi units
C. 3 pi units
D. 4.5 pi units

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Given the standard formula of a circle is x^2 + y^2 = 9, what is the circumference of the circle?
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