Mathematics, 20.09.2021 04:00 Martinemaberry1944

Cho hình chóp S ABCD . có đáy ABCD là hình thoi cạnh a và góc BAD =  60 , SA ABCD ⊥( ). Biết rằng khoảng cách từ A đến cạnh SC bằng a . Thể tích khối chóp S ABCD . là

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Cho hình chóp S ABCD . có đáy ABCD là hình thoi cạnh a và góc BAD =  60 , SA ABCD ⊥( ). Biết rằng...

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