Respuesta :
Answer:
Always
Step-by-step explanation:
An acute angle is an angle that is less than 90. Supplementary angles add up to 180.
So 180-89= 91
An obtuse angle is any angle that is greater than 90.
Here's a link to a better explanation.
https://brainly.com/question/14180317
Answer:
Always true
Step-by-step explanation:
"Acute" means "between 0 and 90 degrees," and "obtuse" "between 90 and 180 degrees. Given an acute angle, we find the supplement by subtracting the acute angle from 180 degrees; the result is obtuse.
Always true.