Answer:
The missing angle is 70 Degrees.
Step-by-step explanation:
You have a 9 degree angle on the opposing side making the complete angle of the missing one plus the 20 degrees 9 degrees. Now simply subtract your 20 degrees from the 90. =70
Answer: 110°
Step-by-step explanation: The missing angle is an obtuse angle which means that this angle is greater than 90° but less than 180°
