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Lattice Point as Centroid (Posted on 2011-04-10) Difficulty: 3 of 5
The three vertices of a triangle are lattice points. The triangle contains no other lattice points but its interior contains exactly one lattice point.

Prove that the interior lattice point is the triangle's centroid.

See The Solution Submitted by Bractals    
Rating: 3.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Typo in solution | Comment 7 of 8 |
Triangles should be PAB, PBC, and PCA instead of PAB, PAB, and PAB.
  Posted by Bractals on 2011-04-11 14:03:20
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