Предмет: Алгебра, автор: Alexaloving

Дан треугольник ABC с прямым углом B . Известно, что мера угла C = 30° . Найдите AB , если [AC] на 11 см длиннее [AC]
Помогите пожалуйста даю 50 балов.

Ответы

Автор ответа: myta00
5

Ответ:

11

Объяснение:

по теореме о угле 30° в прямоугольном треугольнике катет напротив такого угла равен половине гипотенузы. Значит АС=2АВ.

11+АВ=2АВ, АВ=11

Alexaloving: 50б
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