One of two which total 90o
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Supplementary angles are two angles that add up to 180 degrees. Complimentary angles are two angles add up to 90 degrees. Kinda hard here to graph the angles, but: (1) Draw a 90 degree angle: The angle of any line drawn for the apex is a complemetary angle to the other. (2) Draw a straight line (180 deg): The angle of any line that meets the straight line is a supplementary angle to the other.
Right angle, obtuse angle, acute angle, supplementary angle, complementary angle, interior angle, exterior angle, adjacent angle
The angle of incidence
the angle of incidence is the initial ray angle and the angle of reflection is the reflected ray angle
It is a reflex angle