Respuesta :

Step by step explanation:

The sum of the interior angles of a triangle must be 180, so

[tex]m+3m+m-35=180[/tex][tex]5m-35=180[/tex][tex]5m=180-35[/tex][tex]5m=145[/tex][tex]5m=\frac{145}{5}[/tex][tex]m=29[/tex]

Answer: m=29

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