The measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair.?

The statement is incorrect; the measures of an exterior angle and its adjacent interior angle actually add up to 180 degrees, not 360. This is because they form a linear pair, meaning they are supplementary angles that lie on a straight line. The exterior angle is formed by extending one side of the polygon, while the adjacent interior angle is the one next to it. Thus, their sum is always 180 degrees.