Байарыст 2008 №4 вариант 6

Bayarystanov AO 2008 work №4 options 6
The ceilings of the pyramid A (3; 4; 2); B (–2; 3; –5); C (4; –3; 6); D (6; –5; 3) is given. It is necessary to find: a) | AB |; b) BC; BD; c) S ABC; d) V ABCD.

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