Answer:
[tex]2x-6+x+x=180[/tex]
[tex]4x-6=180[/tex]
[tex]4x=180+6[/tex]
[tex]4x=186[/tex]
[tex]x=\frac{186}{4}=46,5°[/tex]
Step-by-step explanation: the other angle is equal to his simmetrical, cause the triangle is isosceles, so is value is x. The sum of the angle in a triangle must be 180°
