Answer:
80 degrees
Step-by-step explanation:
So what you are gonna want to do first is separate that rectangle fro the triangle.
So pretend you have a line in there.
Now the angles 140 degrees will be split into 90 degrees and something else.
140-90= 50 degrees
Now you know that the triangle has two 50 degrees
Add those two together to make it easier
50 + 50 = 100
And a triangle has 180 degrees total
so now minus 100 from 180
180 - 100 = 80
And that means X = 80 degrees
