Предмет: Геометрия, автор: ilana4827

Помогите пожалуйста! Это очень срочно

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Автор ответа: zmeura1204

Ответ:

АВ=13ед; Р=36ед

Объяснение:

т.Н - основание высоты ВН

∆АВН- прямоугольный треугольник

По теореме Пифагора:

АВ=√(АН²+ВН²)=√(12²+5²)=13ед.

АВ=ВС=13ед.

АН=НС=5ед ВН - медиана равнобедренного треугольника.

АС=2*5=10ед.

Р=АВ+ВС+АС=13+13+10=36ед.

ilana4827: Спасибо:)

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