ANSWER:
a. complementary
STEP-BY-STEP EXPLANATION:
We add both angles to determine if they could be complementary, supplementary, or neither, just like this:
[tex]\angle A+\angle B=47\degree+43\degree=90\degree[/tex]The complementary angle is one that allows for forming a right angle. That is, two angles are complementary if they add up to 90°.
Therefore, the correct answer is a. complementary
