Предмет: Геометрия, автор: kelafi4886

ПОМОГИТЕ ВСЕ НА КАРТИНКЕ!!!!
Треугольник CAB – равнобедренный с вершиной в A и высотой AM (см рисунок). Высота АМ = 28 см и опущена на сторону СB = 42 см. Сколько составит периметр треугольника CAM?

Приложения:

Ответы

Автор ответа: SklMatt
2

Ответ:

в равнобедренном треугольнике высота, опущенная к основанию из вершины, является также высотой и медианой

т.к АМ - медиана то СМ=МВ=21

Рассмотрим треугольник САМ

АС=√28²+21² по теореме Пифагора

АС=35

т.а треугольник равнобедренный с основаем ВС, то АС=АВ=35 (боковые стороны)

Р=АС+АВ+ВС=35+35+42=112

Ответ:112

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