Байарыст 2018-1 №4 вариант 5

Bayarystanov A.O. 2018-1 work #4 option 5
The vertices of the pyramid are A(-5;-3;-4); B(1;9;7); C( 3;2;6 ); Given D(8;-2;4). It is necessary to find: a)|AB|; b) BC; BD; c) S ABC; d) V ABCD.

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