Mathematics, 06.08.2021 14:00 allysoftball6226

Cho hình thang cân ABCD (AB//CD) có AB=4cm, CD= 10cm, AD=5cm. Trên tia đối của tia BD lấy điểm E sao cho BE=BD. Gọi H là chân đường vuông góc kẻ từ E đến DC. Tính độ dài CH.

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Cho hình thang cân ABCD (AB//CD) có AB=4cm, CD= 10cm, AD=5cm. Trên tia đối của tia BD lấy điểm E sao...

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