Characterize the convex hull of the set:
I can not do this in geogebra, could you help me?
convexhull is only for points of R2 in GG
Hmm, you could use in this very special case e.g. the Polygon-Command, because three points (not lying on a line) define a plane.
And the convex hull of three points lying in a plane is a triangle.
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