Respuesta :
Answer
100°
Explanation
Supplementary angle are angles that add up to 180.
If a and b are supplementary angles then,
a + b = 180°
Angle a = 80°
a + b = 180°
80° + b = 180°
80° + b - 80 = 180° - 80°
b = 100°
Answer
100°
Explanation
Supplementary angle are angles that add up to 180.
If a and b are supplementary angles then,
a + b = 180°
Angle a = 80°
a + b = 180°
80° + b = 180°
80° + b - 80 = 180° - 80°
b = 100°