angles.
ANSWER: QTN
ANSWER: QTN
Supplementary refers to two angles that add up to 180 degrees. So, if A and B are supplementary, it means that the sum of the measures of angles A and B is equal to 180 degrees.
Now, let's consider the question: "<QTN and ____ are supplementary."
In this case, "<QTN" represents an angle named QTN. So, we need to find another angle that, when added to QTN, will result in a sum of 180 degrees.
To find this angle, we can use the fact that supplementary angles are formed when two lines intersect. When two lines intersect, they form four angles around the point of intersection. These angles are referred to as vertical angles.
Vertical angles are always congruent, meaning they have the same measure. So, if angle QTN is one of the vertical angles, the other vertical angle will also be QTN.
Therefore, the missing word in the statement should be "vertical angles." So, the completion of the sentence is: "<QTN and vertical angles are supplementary."