CHO HÌNH BÌNH HÀNH ABCD TÂM O . CHỌN KHẲNG ĐỊNH ĐÚNG

Lớp 10 Toán Đề thi học kỳ 1 lớp 10 môn Toán năm 2018 2019 trường THPT Nguyễn Huệ Hải phòng CÓ FILE WORD

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Câu 14. Cho hình bình hành ^ABCD tâm ^O ^. Chọn khẳng định đúng?

A. ^BC ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^AD ^. B. ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^{AB CD} ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^. C. ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^{AO CO} ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^. D. ^{OB OD} ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^.