Let $P_1, P_2, P_3, P_4$ be four 2-dimensional points (in $\mathbb{R}^2$, that is), with coordinates $x_i,y_i$. Is there a formula for the area of their convex-hull?
2026-03-25 19:05:01.1774465501
Area of 2-dimensional convex hull of 4 points?
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