Problem:
A polygon with $3$ vertices has the coordinates $\left(
\begin{array}{cc}
 -0.164 & 0.062 \\
 0. & 0. \\
 0.303 & 0.31 \\
\end{array}
\right)$. Estimate the polygon's interior angles (in radians), area, and perimeter. Also, classify the polygon as 'Simple' or 'Convex'.
Answer:
Angles: $\{0.85,1.99,0.31\}$ 
Area: $0.03$ 
Perimeter: $1.14$ 
Type: Convex
{'source': 'AMPS', 'file': 'amps/mathematica/geometry/polygons/63204.txt'}