Answer:
The answer is: 
Step-by-step explanation:
If we add the angles inside a triangle, we must have
. So we have an
angle and an
angle, their sum is
, so the missing angle must be 
2) 48
3) 72
4) 48
5) 105
6) 47
7) 37
8) 400
9) 17
10) 13
I hope this helps! Let me know if I get anything wrong so I can fix it.
This would be displayed as
3x/5
Measure of angle 1.
Angle ALS consists of angle 1 and 2. When you take the angle 2 away, subtract it, it ends with angle one.