Предмет: Математика, автор: maksegorov0102

Дан треугольник который вписан в окружность и нужно выразить медиану. В классе начали решать через теорему птолемея а дальше не знаю что делать... ПОМОГИТЕ ПОЖАЛУЙСТА!!!

Ответы

Автор ответа: sarry08911

Ответ:

Дальше подобие треугольников используй, вырази стороны которые тебе нужны будут в теореме птолемея , затем преобрази выражения. В итоге получишь что медиана равна одна вторая * корень из ( 2* ( сумма квадратов сторон треугольника, например ав^2+ac^2- bc^2( вычитать квадрат той стороны к которой проведена мелиана))

sarry08911: спасииибоооо

sarry08911: за баллыыыы

maksegorov0102: это тебе спасибо за это решение

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