Respuesta :
The answer is 100. Explanation: Supplementary is two angles that add up to 180 therefore the answer is 100
Good evening,
Answer:
100°
Step-by-step explanation:
Two angles are supplementary if the sum of their measures is equal to 180°
then the measurement of an angle that is supplementary to an angle that measures 80° is :
180 - 80 = 100°