Angles y and z are complimentary. If angle y is 18°, what is the measure of angle z?
18°
36°
72°
162°

Answer:
z = 72°
Step-by-step explanation:
Complimentary angles sum to 90° , thus
z + y = 180, that is
z + 18 = 90 ( subtract 18 from both sides )
z = 72°
So the right answer is 72 degree.
Look at the attached picture
Hope it will help you
Good luck on your assignment