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anhhoangminh2004
2 năm trước
cho tam giác ABC vuông tại A (AB<AC) KẺ AH vuông góc với BC tại H gọi K là điểm nằm trên đoạn HC sao cho HK=BD , D là điểm trên tia AH sao cho H là trung điểm AD cminh a, tam giác ABH =tam giác DKH b, AK // BD c, AK vuông góc CD giúp mình nhanh với ạ
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