✨ Best Answer ✨
印の角が同じなので、△ABEで
××+〇〇+30＝180°
→ ××+〇〇＝150
→ ×+〇＝75
α＝×+〇+30
＝75+30
＝105
ごめんなさい🙇♀️わかりました！ありがとうございます😊😭
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