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songquynh
2 năm trước
1) Cho lục giác đều ABCDEF tâm O . Hãy xác định ảnh của tam giác BCO qua phép tịnh tiến theo véc-tơ AF 2) Cho tam giác ABC . Gọi I, J, K lần lượt là trung điểm AB, BC, AC. Hãy xác ảnh của tam giác I, J, K qua phép tịnh tiến theo véc-tơ BJ
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