To solve this problem you must apply the proccedure shown below:
1. You know that the sum of the angles is [tex]360[/tex] degrees. Therefore, you must sum them and solve for [tex]a[/tex]:
[tex]a+a+2a+2a=360[/tex]
[tex]a=60[/tex] degrees
2. Therefore, the angles are:
[tex]a=60[/tex] degrees
[tex]2a=2(60)=120[/tex] degrees
The answers are:
[tex]a=60[/tex] degrees
[tex]60[/tex] degrees, [tex]60[/tex] degrees, [tex]120[/tex] degrees, [tex]120[/tex] degrees
