Respuesta :

Using angle sum property

[tex]\\ \sf\longmapsto x+43+73+70=180[/tex]

[tex]\\ \sf\longmapsto x+43+143=180[/tex]

[tex]\\ \sf\longmapsto x+186=180[/tex]

[tex]\\ \sf\longmapsto x=180-186[/tex]

[tex]\\ \sf\longmapsto x=-6[/tex]

Option C is correct

MisterBrainly

Sum of angles of any triangle is 180°

  • x+43+73+70=180
  • x+186=180
  • x=180-186
  • x=-6

Option C

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