The angles of a triangle are 2x0, (3x–30 )0 and ( 4x– 60 )0. Find x. Also name the triangle.
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We know that sum of all angles of a triangle is equal to 180°
So, (x+10)° + (2x-30)° + (x) ° = 180°
=> (x+2x+x)° + (10-30)° = 180°
=> (4x)° - 20° = 180°
=> 4x = 200
=> x=50 Ans
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