Answer:
33°
Step-by-step explanation:
Complementary angles are two angles that, when added together, result in a 90° angle.
If we know the measure of one of these angles, we can easily find the measure of the other. Let's assume x is the missing angle length.
[tex]57 + x = 90[/tex]
[tex]x = 90-57\\\\x = 33[/tex]
So x is 33°.
Hope this helped!
