Difference between revisions of "2011 AMC 10A Problems/Problem 25"
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Revision as of 13:04, 13 February 2011
Problem 25
Let be a square region and
an integer. A point
in the interior of
is called
partitional if there are
rays emanating from
that divide
into
triangles of equal area. How many points are 100-ray partitional but not 60-ray partitional?