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Mathematics, 14.06.2021 19:40 yeet6942000

Cho 1 hình chữ nhật ABCD chiều dài gấp đôi chiều rộng. Từ A kẻ 1 góc 15 độ cắt CD tại E, nối E với B. Chứng minh ABE là tam giác cân

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Cho 1 hình chữ nhật ABCD chiều dài gấp đôi chiều rộng. Từ A kẻ 1 góc 15 độ cắt CD tại E, nối E với B...
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