## Prealgebra (7th Edition)

Circumference = 26$\pi$ m The approximation of the circumference = 81.64 $m^{2}$
Circumference =$\pi$ $\times$ diameter= $\pi$ $\times$ d Circumference = $\pi$ $\times$ 26 = 26$\pi$ m The approximation of the circumference = (3.14) $\times$ 26 = 81.64 $m^{2}$