Which name applies to the angle pair shown below?

b complementary

Step-by-step explanation:

The two angles add to form a right angle.  Two angles that form a right angle, or add to 90 degrees are called complementary.

B.) Complementary

Step-by-step explanation:

A.) A straight angle is an angle that makes a 180° angle, which is wrong.

B.) A complementary pair is two angles who's sum is 90°. Since in the picture, there is a  90° (you can tell by the little square in it's angle) split in two, it is complementary.

C.) Vertical angles are two angles made opposite by two intersecting lines.

D.) Supplementary angles (2) make a total of 180° when they are added together.

i can't see the picture : /

step-by-step explanation:

abc