End of semester Geometry A question 5 Select the correct answer from each drop-down menu.
Given:

is complementary to

Prove:

Complete the proof in paragraph form.

Complete the proof in paragraph form.

By the definition of complementary angles, since is complementary to , . By the vertical angles theorem, , and by the definition of congruence. Combined with the given equation, , the substitution property of equality means that . Using the
,
. Finally, using the
, .