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phanthaiduy2002
2 năm trước
Cho tam giác ABC cân tại A có AM là đường trung tuyến. I là trung điểm của AC, K là điểm đối xứng với M qua I A, Chứng minh tứ giác AMCK là hình chữ nhật B, chứng minh AB // KM C, Tìm điều kiện của tam giác ABC để tứ giác AMCK là hình vuông Cần gấp ạ. Vui lòng vẽ hình và phân tích kĩ cách làm
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