Предмет: Математика, автор: Galinanik74

Площадь.Периметр прямоугольников?

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Автор ответа: ShurikenBrute

0

Площадь треугольника равна полусумме основания на высоту, опущеную к этому основания. Площадь-сумма длин всех сторон.

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