Предмет: Геометрия, автор: krok17

Основания трапеции относятся как 5:8, средняя линия равна 39, найдите большее основание трапеции

Ответы

Автор ответа: dtnth

0

Пусть меньшее основание равно 5х, тогда большее основание равно 8х. среднняя линия трапеции равна полусумме оснований. По условию задачи составляем уравнение:

(5х+8х):2=39;

13х=2*39;

х=2*3;

х=6

Большее основание равно 8*6=48

ответ: 48

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