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Mathematics, 11.08.2021 14:00 kristofwr3444

Cho ΔABC nhọn có hai đường cao BD, CE cắt nhau tại H. Các tia phân giác góc EHB và DHC cắt AB vàAC lần lượt tại I và K. Qua I và K lần lượt vẽ các đường thẳng ⊥ vs AB và AC và chúng cắt nhau tại M. KM và IM lần lượt cắt BC tại P và Q a) C/m AI=AK
b) C/m HM đi qua trung điểm J của BC
CÂU a) MÌNH ĐÃ BIẾT LÀM GIỜ CÒN CÂU b) MONG MỌI NGƯỜI GIẢI GIÚP Ạ

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Cho ΔABC nhọn có hai đường cao BD, CE cắt nhau tại H. Các tia phân giác góc EHB và DHC cắt AB vàAC l...
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