Answer: 60 degree
Explanation: The sum of the three interior angles of a triangle is always 180°.
180-80-40=60 degree.
Answer:
A.
Step-by-step explanation:

Answer:
The answer is... x = 7 I used an app called Cymath is goes down step by step to help.
Step-by-step explanation:
I hope I helped you! :)
Rectangle explanation:I’m doing the same thing
Answer:my xbox name is lunabgdrg
Step-by-step explanation:
that is all