V?y khi k thay ??i thì trung ?i?m c?a PQ luôn thu?c ???ng th?ng c? ??nh ?i qua trung ?i?m c?a AB và DE.T?t C?two hundred ?? Thi Th? T?t Nghi?p THPT 2025 L?ch S?L?ch S? L?p 12L?ch S? L?p 11L?ch S? L?p 10L?ch S? 9L?ch S? 8L?ch S? 7L?ch S? 6T?t C?two hundred ?? Thi Th? T?t Nghi?p THPT 2025 L?ch S?L?ch S? L?p 12L?ch S? L?p 11L?ch S? L?p 10L?ch S? 9L