Mathematics
Junior High

xの大きさを教えてください🙇‍♀️🙇‍♀️

Answers

円周角は中心角の半分
  ∠ABC=25°
三角形の内角の和は180°
  180°−(25°+40°)=180°−65°=115°
直線は180°
  180°−115°=65°

よって、X=65°だと思います

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