Предмет: Геометрия, автор: Аноним

помогите, срочно, надо доказать по какой примете это ровный трёхвыгольник, 7 класс

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Автор ответа: LN330068

1

Ответ:

По второму признаку равенства треугольников-по стороне и двум прилежащим к ней углам

АО=DO;<A=<D; по условию задачи

<АОВ=<DOC,как вертикальные

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