Answer :

Those two angles are supplementary. It is because the sum of their measurements is 180 degrees.

Two angles are vertical angles when they are opposite each other and formed by two intersecting lines. These angles are always congruent, meaning they have the same measure.

Two angles are complementary when the sum of their measures is 90 degrees. Two angles are supplementary when the sum of their measures is 180 degrees.

In this case, since both of the vertical angles are 90 degrees, the sum of their measures is 180 degrees (90 + 90 = 180). Therefore, these two angles are supplementary.

So, the answer to the question is that if two angles are vertical angles and both are 90 degrees, they are supplementary.

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