Предмет: Геометрия, автор: bekitaevaAsia

срочно пожалуйста!!!

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Ответы

Автор ответа: tolya91

1

в правильном треугольнике биссектрисы с медианами совпадают
медианы точкой пересечения делятся как 1 к 2
медиана=5cos30=(5√3)/2
r=1/3 медианы=(5√3)/6
l-длина окружности
l=2пR=(5п√3)/3

bekitaevaAsia: спасибо!!!

bekitaevaAsia: а это точно правильно, а то контрольная завтра. ..?)

tolya91: да вроде правильно

bekitaevaAsia: спасибо

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