Problem:
A polygon with $4$ vertices has the coordinates $\left(
\begin{array}{cc}
 0.003 & 0.18 \\
 0.055 & 0.766 \\
 0.713 & 0.602 \\
 0.85 & 0.183 \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Type: Simple 
Area: $0.37$ 
Angles: $\{1.48,1.26,2.13,1.41\}$ 
Perimeter: $2.55$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/98556.txt'}