\"\"

\

To model the shape of the arch the equation is \"\".

\

Where \"\" is measured in \"\".

\

Solve for \"\".

\

\"\"

\

Therefore, the limits are \"\" and \"\".

\

\"\"

\

\

\"\"

\

\

\"\"

\

The area under the arch is \"\".

\

\"\"

\

The area under the arch is \"\".