Step-by-step explanation:

Where Z is set of integer.
Answer: angle B will be 90°
Sum of the angles = 180°
Answer:
A
Step-by-step explanation:
2 is the only acute angle meaning less than 90 degrees.
-3; -2 3/10; -2 2/5; -2 1/2
Your welcome!
9.5000032 is one such number