Предмет: Геометрия, автор: anastasiaivanova2580

помогите пожалуйста очень срочно прошу вас умаляю

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Ответы

Автор ответа: Аноним

1

Ответ:

Объяснение:

4)

ВА=ВН+НА=6+18=24см

СВ=√(ВА*ВН)=√(6*24)=√144=12см

Ответ: х=12см

5)

Р=4а, где а- сторона ромба

а=Р/4=48/4=12см.

S=a²*sin120°=12²*√3/2=72√3 см²

Ответ: 72√3см

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