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Mathematics, 10.09.2021 06:30 thinabby

Cho tam giác ABC vuông cân tại A . Trên cạnh BC lấy điểm H sao cho BH=HG=GC . Qua H và G kẻ các đường thẳng vuông góc với BC chúng cắt AB và AC theo thứ tự E , F . Chứng minh rằng : 1) tam giác BEH và tam giác CFG là tam giác vuông cân
2)EH=HG=GF

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Cho tam giác ABC vuông cân tại A . Trên cạnh BC lấy điểm H sao cho BH=HG=GC . Qua H và G kẻ các đườn...
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