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According to the Triangle Inequality Theorem, the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Given that the first two sides measure 6 and 2, we can determine the possible whole number measures of the third side by checking if 6+2 > third side and 6+third side > 2 and 2+third side>6.
After solving the inequalities, we find that the possible whole number measures of the third side are:
5, 6, and 7.
Therefore, the possible whole number measures in ascending order are 5, 6, 7.