Lý thuyết: Bài 31. Hai đường thẳng vuông góc

Hai đường thẳng vuông góc

▨Tổng hợp đề thi học kì 2 lớp 4 tất cả các môn - Chân trời sáng tạo

Toán - Tiếng Việt - Tiếng Anh

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Kéo dài hai cạnh BC và DC của hình chữ nhật ABCD ta được hai đường thẳng vuông góc với nhau.

Hai đường thẳng OM và ON vuông góc với nhau. Có 4 góc đỉnh O là góc vuông.

Chia sẻ

Bình luận

Bình chọn:

4.9 trên 7 phiếu

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Luyện Bài Tập Trắc nghiệm Toán lớp 4 - Chân trời sáng tạo - Xem ngay

Báo lỗi - Góp ý

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