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The circumference of a circle if the radius is 18 is: 113

i have the same question and its multiple choice and none of the choices say 113! :((

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Q: What is the circumference of a circle if the radius is 18?
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A circle has a circumference of 18 pi so what is the radius of this circle?

If a circle has a circumference of 18pi, the radius is 9.


What is the radius of a circle whose circumference is 36 pi?

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What is the radius of a circle if the circumference is 18 cm?

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