Байарыст 2018-1 №4 вариант 14

Bayarystanov AO 2018-1 work №4 options 13
The tops of the pyramid A(–4;–5;–3); B(3;1;2); C(5;7;-6); D(6;–1;5) is given. It is necessary to find: a) | AB |; b) BC; BD; c) S ABC; d) V ABCD.

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