ssaunders869 ssaunders869

26-05-2022
Mathematics

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The circumference of a circle is 18π, what is the radius?

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rxinbow1134 rxinbow1134

26-05-2022

Answer: 9

Explanation: Because pi is included in the answer, you won't be multiplying pi with it.
The only number that equals to 18 is 9.
By using the formula for circumference is: 2πr
2 x 9 = 18
Add pi, 18π.

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