Respuesta :

reinhard10158

Step-by-step explanation:

the sum of all angles in a triangle is always 180 degrees.

so,

x + 12 + 2x - 29 + x + 5 = 180

4x - 12 = 180

4x = 192

x = 48
X+12+2x-29+x+5 = 180. This is because a triangle has 180 degrees
Simplify
4x-12=180
Add 12 to both sides
4x = 192
Divide both sides by 4
X=48

Otras preguntas