[tex]\begin{gathered} \text{circumference = 2}\pi r \\ r=\frac{\text{circumference }}{\text{2}\pi}=\frac{138.16\text{ }}{2\cdot(3.14)}=\frac{138.16\text{ }}{6.28}=22 \\ \text{radius is 22fe}et \\ \text{diameter is 2}\cdot r \\ \text{diameter =2}\cdot(22) \\ \text{diameter}=\text{ 44 } \\ \text{The diameter is 44 fe}et \end{gathered}[/tex]
