Question

If the measure of < A is 47 °, and the measure of < B is 43 ° , then < A and < B are ______.Select one:a.complementaryb.supplementaryc.neither

Answer 1

ANSWER:

a. complementary

STEP-BY-STEP EXPLANATION:

We add both angles to determine if they could be complementary, supplementary, or neither, just like this:

$\angle A+\angle B=47\degree+43\degree=90\degree$

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