Find mA) m =72B) m =29C) m = 43D) m =48

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