Байарыст 2018-1 №4 вариант 2

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

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