Respuesta :

4x+3x+x=180 [ASP of a triangle]
8x=180
x=22.5
Therefore,
4x=4*22.5=90°
3x=3*22.5=67.5°
x=22.5°

m angle K=67.5°
m angle L=90°
m angle KML=22.5°
m angle LMN=180-22.5=157.5°