A scalene triangle has sides of integral length. Two of the sides have lengths 34 units and 67 units. What is the shortest length that the third side can have?
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In a scalene triangle, no three sides are of the same length. In all triangles, for two given side lengths a and b , the third side length c satisfies the inequality ∣ a − b ∣ < c < a + b . Since the given triangle's side lengths are integral, the shortest side length possible for a triangle would be 34 (which is one more than the lower bound, which cannot be a side length since c = ∣ a − b ∣ . However, if the third side length is 34, then the triangle would not be scalene. Therefore, the shortest possible length for the third side is 35.