Предмет: Геометрия, автор: Radizenoo

AB/AC = 2/3. BC+AC = 30. Найти AB

Ответы

Автор ответа: Аноним

Ответ:

Объяснение:

Пусть одна часть х. Тогда АВ=2х, АС=3х.

АВ+ АС=30,

2х+3х=30

5х=30

х=6

АВ=2х

АВ=12

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