Problem:
A polygon with $9$ vertices has the coordinates $\left(
\begin{array}{cc}
 0.141 & 0.01 \\
 0.348 & 0.272 \\
 0.408 & 0.593 \\
 0.409 & 0.196 \\
 0.422 & 0.794 \\
 0.468 & 0.926 \\
 0.551 & 0.012 \\
 0.705 & 0.483 \\
 0.784 & 0.332 \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Area: $0.22$ 
Type: Simple 
Perimeter: $2.63$ 
Angles: $\{0.29,4.66,1.28,2.03,3.13,0.83,2.88,3.25,3.63\}$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/62480.txt'}