The question is not completed
there is some numbers mising
Answer:
Find the value of X in triangles by subtracting known angle measurements from 180 degrees. Since the value of all angles within a triangle must equal 180 degrees, if you know at least two angles, you can subtract them from 180 to find the missing third angle.
If you just type that exact equation into a calculator it gives you the same answer as well
Answer:
2 1/5
Step-by-step explanation: