Problem:
A polygon with $7$ vertices has the coordinates $\left(
\begin{array}{cc}
 -0.802 & 0.025 \\
 -0.718 & 0.457 \\
 -0.667 & 0.667 \\
 -0.598 & 0.731 \\
 -0.231 & 0.473 \\
 -0.053 & 0.116 \\
 0. & 0. \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Area: $0.36$ 
Angles: $\{1.41,1.11,3.11,2.64,1.78,2.55,3.09\}$ 
Type: Convex 
Perimeter: $2.53$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/74778.txt'}