Difference between revisions of "2006 AMC 10A Problems/Problem 19"

Revision as of 02:57, 6 July 2006

How many non-similar triangle have angles whose degree measures are distinct positive integers in arithmetic progression?

$\mathrm{(A) \ } 0\qquad\mathrm{(B) \ } 1\qquad\mathrm{(C) \ } 59\qquad\mathrm{(D) \ } 89\qquad\mathrm{(E) \ } 178\qquad$

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