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Answer: option B
Step-by-step explanation:
The circumference of a circle can be calculated with this formula:
Where "C" is the circumference of the circle and "r" is the radius of the circle.
The area of a circle can be calculated with:
Where "r" is the radius.
Knowing the area, you can solve for the radius:
Substituting into , you get that the circumference of this circle is:
Answer:
Step-by-step explanation:
Since both equations have , we can subtract the second equation from the first to try and solve for
:
With this, we can plug the value back into the first equation to solve for :
Therefore, the solution is