Предмет: Геометрия, автор: merry65

Радиус основания конуса равен 20см, образующая 20,5. Конус пересечен плоскостью , параллельной основанию, на расстоянии 1,5см от его вершины. Найдите радиус полученного сечения. Рисунок пожалуйста

Ответы

Автор ответа: grunskiy94

0

имеется образ 20,5
радиус 20
высота равна 4,5
сле-но соотношение 1,5 к 4,5
1,5/4,5 =х/20
х=20*1,5/4,5=20/3
радиус сечения равен 20/3

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