How are the two angles related?

Two angles are shown. One angle is labeled 78 degree sign. The other angle is labeled 102 degree sign.
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(1 point)
Responses

They are supplementary.
They are supplementary.

They are vertical.
They are vertical.

They are complementary.
They are complementary.

They are adjacent.

The two angles are related as follows:

They are supplementary.

Two angles are supplementary when their measures add up to 180 degrees. In this case, 78 degrees + 102 degrees = 180 degrees. Thus, these two angles are supplementary.