Mathematics, 22.07.2021 08:30 Talber1

Cho chóp SABCD có đáy là hình bình hành. Gọi M, N lần lượt là trung điểm của SB, SC; P thuộc BC sao cho PC= 2PB . Tìm giao tuyến của (MNP) với các mặt của chóp . giúp mình với ạ

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Cho chóp SABCD có đáy là hình bình hành. Gọi M, N lần lượt là trung điểm của SB, SC; P thuộc BC sao...