Answer:
none of the offered choices is correct
[tex]circumference=4\pi\sqrt{15}\,\text{cm}[/tex]
Step-by-step explanation:
We can use the area equation to find the radius of the circle, then use that to find the circumference.
A = πr²
60π = πr²
60 = r² . . . . . . . divide by π
√60 = 2√15 = r . . . . take the square root
Now, the circumference is given by ...
C = 2πr
C = 2π(2√15) = 4π√15 . . . . cm
_____
If the area were 60 cm², answer choice B would be correct. Since it is 60π cm², no answer choice is correct.
