what is the relationship between $angle m$ and $angle n$?\nchoose 1 answer:\na vertical angles\nb…

what is the relationship between $angle m$ and $angle n$?\nchoose 1 answer:\na vertical angles\nb complementary angles\nc supplementary angles\nd none of the above
Answer
Brief Explanations:
Vertical angles are pairs of opposite angles formed by intersecting lines. $\angle m$ and $\angle n$ are opposite each other at the intersection of lines $AC$ and $BD$, fitting this definition. Complementary angles sum to $90^\circ$, and supplementary angles sum to $180^\circ$, which does not describe this pair.
Answer:
A. Vertical angles