Предмет: Геометрия, автор: MusabaevaMB

из одной точки проведены к плоскости перпендикуляр и две равные наклонные, проекции которых, равные 25 см, образуют угол 90 градусов. на одной из наклонных взята тоска К , а на другой точка N. точка К удаленна от перпендикуляра на 10 см, а точка N - на 15 см. опредилите длину перпендикуляра если расстояние между точками K и N равно 19 см.

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Автор ответа: 25sad

почти......................................

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