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Câu 40:

Cho tứ diện ABCD có $AB = AC,\,\,BD = DC$

Câu 40: Cho tứ diện ABCD có AB=AC, BD=DCAB = AC,\,\,BD = DCAB=AC,BD=DC. Khẳng định nào sau đây đúng?

Thông tin câu hỏi

Câu 40:

Cho tứ diện ABCD có $AB = AC,\,\,BD = DC$ . Khẳng định nào sau đây đúng?