Answer:
The value of x is

Explanation:
Solution :
Here we have given two angles of triangle are 80⁰,55⁰.
We need to find the third angle of triangle (x).
- As we know that the sum of interior angles of triangle is 180⁰.
Now, According to the question.






Hence, the value of x is 45⁰.

Verification :
To verify, we'll add all angles of triangle and check the sum of triangle is 180⁰ or not.





Hence Verified!
