Answer:
42•5°
Explanation:
We know, sum of the angles of triangles is 180°
m° + 2m° + (m + 10)° = 180°
or 3m° + m° + 10° = 180°
or 4m° - 10° + 10° = 180° - 10°
or 4m° = 170°
or 4m° / 4 = 170° / 4
or m° = 42.5°
Therefore, m = 42.5°
180°=m+2m+(m+10)
180°=4m+10
4m=180-10
m=170÷4
m=42.5
2m=42.5x2=85°
(m+10)=42.5+10=52.5°
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