Предмет: Математика, автор: meowwwwww

На рисунке 17 CF || BE, AE = 6 см, EF = 14 см, BC = 35 см. Найдите отрезок AB.

Приложения:

Ответы

Автор ответа: Аноним

По т. Фалеса: $dfrac{AB}{BC} = dfrac{AE}{EF}$

Отсюда $AB:$

$AB= dfrac{AEcdot BC}{EF} = dfrac{6cdot 35}{14} =15$

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