Предмет: Геометрия, автор: kricvlad311

Знайти проекцію похилої АВ на площину альфа, якщо перпендикулчр АС на площину альфа АС=12см, АВ =15см.

Ответы

Автор ответа: ludmilaksenija2005

1

Ответ:

9 см

Объяснение:

по теореме Пифагора:

ВС=√(АВ²-АС²)=√(15²-12²)=√81=9 см

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