Байарыст 2018-1 №4 вариант 16

Bayarystanov A.O. 2018-1 work No. 4 option 16
The vertices of the pyramid are A(-6;4;5); B(9;-7;3); C( 7;2;-8); Given D(-2;8;-3). It is necessary to find: a)|AB|; b) BC; BD; c) S ABC; d) V ABCD.

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