Problem:
A polygon with $7$ vertices has the coordinates $\left(
\begin{array}{cc}
 -0.711 & 0.194 \\
 -0.35 & 0.025 \\
 -0.253 & 0.46 \\
 0. & 0. \\
 0.026 & 0.001 \\
 0.119 & 0.076 \\
 0.198 & 0.338 \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Type: Convex 
Perimeter: $2.16$ 
Angles: $\{0.97,2.77,3.02,2.52,2.54,1.54,2.35\}$ 
Area: $0.27$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/23862.txt'}