Question 418630
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Hi
Let x, 4x and (5x-11)represent angles A,B and C respectively
Question states***
  x + 4x + (5x-11°) = 180°
Solving for x
       10x = 191°
         x = 19.1°, measure of Angle A.  B is 76.4° and C is 84.5°
CHECKING our Answer***
  19.1° + 76.4° + 84.5° = 180°