Mathematics
Senior High
Resolved
△ABCにおいて、辺ABを1:2に内分する点をD、辺BCを7:3に外分する点をE、DEとACの交点をFとするとき次の問いに答えよ。
⑴ AF:FCを求めよ。
⑵ 面積比△FCE:△ABCを求めよ。
答えは
⑴ AF:FC＝7:6
⑵ △FCE:△ABC＝9:26
です！！
この問題の解き方教えてください！！
お願いします🙇♀️🙇♀️
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理解できました！！
ありがとうございます😊🌟