Предмет: Алгебра, автор: gorislavflerov

Докажи, что четырёхугольник ABCD является прямоугольником, найди его площадь, если A(12;3), B(14;6), C(2;14) и D(0;11).

Ответы

Автор ответа: yasmina27092006

Он не является прямоугольником,так как у него 2 стороны должны быть парралельны друг другу

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