Problem
2003 AMC 10A Problem 7
How many non-congruent triangles with perimeter 7 have integer side lengths?
\mathrm{(A) \ } 1\qquad \mathrm{(B) \ } 2\qquad \mathrm{(C) \ } 3\qquad \mathrm{(D) \ } 4\qquad \mathrm{(E) \ } 5
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