circumference=
[tex]2\pi \: radius[/tex]
[tex]26\pi = 2\pi \: raduis \: [/tex]
[tex] \frac{26\pi}{2\pi} = raduis[/tex]
radius = 13
area of circle =
[tex]\pi {raduis}^{2} [/tex]
area of circle=
[tex]\pi {13}^{2} [/tex]
area of circle=
[tex]169\pi[/tex]
