Answer:
4 cm
Step-by-step explanation:
Use the formula for the area of a circle, which is = ^2 , where A is the area and r is the radius
Given that the area = 4 ^2, we can solve for the radius r by setting up the equation ^2 = 4^2
Dividing both sides by gives ^2 = 4 ^2
Taking the square root of both sides gives r = 2 cm
Use the circumference formula = 2 to find the circumference Substitute the value of r into the formula to get = 2 ( 2 ) = 4
