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Problem of the Day #218: Area of a Convex Hull October 23, 2011

Posted by Alex in : potd , trackback

For some set of points, a convex hull is a subset of points that forms the vertices of a convex polygon completely covering all the points in the set. Find the area of the convex hull of all the lattice points within the circle $$(x-4)^2 + (y-5)^2 = 16.$$


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