May I please have help on this Geometry question? Suppose the cow is tied to a corner of a building which is in the shape of a regular polygon of n sides. The length of a side of the building and the length of the rope are each r. Find the area of the region over which the cow can graze.
[tex]\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{2}\cdot n\cdot r^2\cdot sin\left( \frac{360}{n} \right) \qquad
\begin{cases}
n=\textit{number of sides in a polygon}\\
r=radius\\
\frac{360}{n}=\textit{angle in degrees}
\end{cases}[/tex]
