Байарыст 2008 №4 вариант 4

Bayarystanov AO 2008 work №4 options 4
The ceilings of the pyramid A (2; 4; 1); B (–3; –2; 4); C (3; 5; –2); Given D (4; 2; –3). It is necessary to find: a) | AB |; b) BC; BD; c) S ABC; d) V ABCD.

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