Cho hình chóp
S ABCD .
có đáy
ABCD
hình chữ nhật,
AB SA a,
AD a 3 ,...
Mathematics, 18.09.2021 14:00, sanders8151
Cho hình chóp
S ABCD .
có đáy
ABCD
hình chữ nhật,
AB SA a,
AD a 3 , SA ABCD ( ). Tính góc giữa
SD
và
SAB
?
Answers: 2
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