Mathematics, 24.07.2021 04:00 Angelav3

Cho hình vuông abcd gọi e là trung điểm của ad. Vẽ ef vuông góc với eb( điểm f nằm trên cạnh dc). Tính tỉ số ef/eb

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Cho hình vuông abcd gọi e là trung điểm của ad. Vẽ ef vuông góc với eb( điểm f nằm trên cạnh dc). Tí...