[tex]\bf \textit{circumference of a circle}\\\\
C=2\pi r\quad
\begin{cases}
r=radius\\
-----\\
C=29.5
\end{cases}\implies 29.5=2\pi r\implies \boxed{\cfrac{29.5}{2\pi }=r}
\\\\\\
\textit{area of a circle}\\\\
A=\pi r^2\qquad \qquad A=\pi \left( \boxed{\frac{29.5}{2\pi }} \right)^2\\\\\\ A=\pi \cdot \cfrac{29.5^2}{2^2\pi^2}\implies A=\cfrac{29.5^2}{4\pi }[/tex]
