Cho tam giác ABC cân tại A.Trên cạnh AB lấy điểm D.Trên cạnh AC lấy điểm E sao cho AD=AE a,Chứng minh BE=CD b,Chứng minh góc ABE=góc ACD c,Gọi K là giao điểm của BE và CD.Tam giác KBC là tam giác gì?Vì sao? d,Chứng minh ba đường thẳng AC,BD,KE cùng đi qua một điểm Help me,please.Bạn nào làm xong đầu tiên mình vote 5 sao và câu trả lời hay nhất.🙏🙏🙏🙏😊

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