Respuesta :

Answer:

180° (in place of blank)

Step-by-step explanation:

GIVEN :-

  • ∠D = 127°
  • ∠A = 75°

PROCEDURE :-

∠C & ∠D are linear pair. (∵ They lie on same line)

⇒ ∠C + ∠D = 180°

∠C = 180° - 127°

In a triangle , sum of its all interior angles equals to 180° (which is also known as "Angle Sum Property). So,

∠A + ∠B + ∠C = 180°

⇒ 75° + ∠B + (180° - 127°) = 180°

⇒ ∠B = 180° - 75° - (180° - 127°)

Answer:

180%

Step-by-step explanation:

took the test got it right on the test

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