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thienphudo
2 năm trước
Cho tam giác ABC có AB=4,8cm,AC=6,4 cm,BC=3,6cm.Trên cạnh AB lấy lấy điểm D sao cho AD=3,2 cm.Trên cạnh AC lấy điểm E sao cho AE=2,4cm a) Chứng minh rằng tam giác AED đồng dạng với tam giác ABC b) Tính độ dài DE giải giúp em với
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