Предмет: Алгебра, автор: cixih14054

Знайдіть площу рівнобедреного трикутника основа якого 2а, а кут при основі трикутника а.

Ответы

Автор ответа: Programier

Ответ:

S=2a*h/2

H= a*tgA

S=2a*a*tgA/2=a²tgA

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