Answer:
Circumference of circle = 8π cm.
Step-by-step explanation:
Given : The area of a circle is 16π cm².
To find : What is the circle's circumference.
Solution : We have given that area of a circle is 16π cm².
Area of circle = π ( radius)²
Plug the value
16π = π ( radius)²
On dividing by π both sides
16 = ( radius)²
Taking square root both sides
Radius = 4 cm .
Circumference of circle = 2 * π * radius .
Circumference of circle = 2 * π * 4 .
Circumference of circle = 8π cm.
Therefore, Circumference of circle = 8π cm.
