Answer:
[tex]9^\circ , 171^\circ[/tex]
Step-by-step explanation
If a represents the measure of the angle, then 180 - a is the measure of its supplement. (Supplements add up to 180 degrees.)
The sentence in the problem translates to an equation:
a = (180 - a) - 162
Simplify the right side.
a = 18 - a
Add a.
2a = 18
a = 9
The angle's measure is [tex]9^\circ[/tex]. The supplement is [tex]180^\circ - 9^\circ =171^\circ[/tex]
