Mathematics, 20.06.2021 18:50 ethanh7755

Cho ABC vuông tại A có AB < AC. Từ một điểm M trên cạnh BC vẽ Mx vuông góc với BC, cắt cạnh AC tại H, cắt tia BA tại D. a. Chứng minh ABC đồng dạng với MBD b. Chứng minh CH . CA = CM . CB c. BH cắt CD tại P. Chứng minh CH. CA + BH. BP = CB2 d. Cho góc ABC bằng 600 và diện tích CBD bằng 100cm2. Tính diện tích ABM

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Cho ABC vuông tại A có AB < AC. Từ một điểm M trên cạnh BC vẽ Mx vuông góc với BC, cắt cạnh AC t...

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