Cho chóp tứ giác SABCD. Lấy M thuộc SA. Tìm giao tuyến giữa SB và (MCD).
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Mathematics, 26.07.2021 16:20 zitterkoph
Cho chóp tứ giác SABCD. Lấy M thuộc SA. Tìm giao tuyến giữa SB và (MCD).
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