To solve this problem you must apply the proccedure shown below:
1. You know that the sum of the angles is 
degrees. Therefore, you must sum them and solve for 
:
degrees
2. Therefore, the angles are:
degrees
degrees
The answers are:
degrees
degrees, degrees, 
degrees, degrees
Answer:
7<x<31
Step-by-step explanation:
The third side of any triangle must be more than the difference between the other two sides.
x>19-12
x>7 (or) 7<x
The third side of any triangle must be less than the sum of the other two sides.
x<19+12
x<31 (or) 31>x
Put them together.
7<x<31 (or) 31>x>7
