The area of a circle is 16π
units 2
. What is the circumference of the circle?
The area of a circle is given by the formula:
Area = πr^2
Given that the area is 16π units^2, we can solve for the radius:
16π = πr^2
r^2 = 16
r = 4
Now that we know the radius is 4, we can find the circumference of the circle using the formula:
Circumference = 2πr
Circumference = 2π(4)
Circumference = 8π
Therefore, the circumference of the circle is 8π units.