If the area of a circle measures 16 pi cm squared, what is the circumference of the circle in terms of pi?

Respuesta :

Answer:

8[tex]\pi[/tex]

Step-by-step explanation:

Since the area of a circle is A = [tex]\pi r^{2}[/tex], and the circumference of a circle is

C = [tex]\pi d[/tex] or C = [tex]2\pi r[/tex], we need to solve for r using the area equation

Since the area is 16[tex]\pi[/tex], we will replace that for the "area" in our equation

16[tex]\pi[/tex]=[tex]\pi r^{2}[/tex] which simplifies to 16 = [tex]r^{2}[/tex] making r = 4

We can now plug in r into our circumference equation C = 2[tex]\pi[/tex](4) = 8[tex]\pi[/tex]

Answer:

8

Step-by-step explanation: