Problem:
A polygon with $8$ vertices has the coordinates $\left(
\begin{array}{cc}
 -0.215 & 0.411 \\
 -0.156 & 0.14 \\
 -0.133 & 0.099 \\
 0. & 0. \\
 0.292 & 0.627 \\
 0.441 & 0.197 \\
 0.539 & 0.283 \\
 0.624 & 0.723 \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Perimeter: $2.45$ 
Area: $0.35$ 
Type: Convex 
Angles: $\{1.76,2.84,2.73,2.08,2.84,2.48,1.1,3.02\}$
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/15149.txt'}