Answer:
[tex]c = 10 \sqrt{\pi} [/tex]
Step-by-step explanation:
A = pi*r^2
We first plug in 25 for A
25 = pi * r^2
Solve
[tex]r = \sqrt{ \frac{25}{\pi} } [/tex]
We can then plug in r for circumference formula
C = 2pi * r
[tex]c = 2\pi \sqrt{ \frac{25}{\pi} } [/tex]
[tex]c = 10 \sqrt{\pi} [/tex]
or 17.72
