# Finding the area inside a convex hull

This quick video answers a question about finding the area of the smallest polygon that covers a set of points. It is a chance to use a few commands in MATLAB to simplify a script. Here is the code that will be discussed.  x1 = rand(1,10); y1 = rand(1,10); vi = convhull(x1,y1); polyarea(x1(vi),y1(vi)) plot(x1,y1,'.') axis equal hold on fill ( x1(vi), y1(vi), 'r','facealpha', 0.5 ); hold off 
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