Если не по этим двум теоремам то тут есть ещё равнобедренный треугольники:
FDE- две бечные стороны равны(значит он равнобедренный)KLM- углы при основе равны(тоже теорема про равнобедренный треугольники) по этому он равнобедренный.ABC- две бечные стороны равны(значит он равнобедренный)Если вам нужна с этой темой, буду рад )
Поделитесь своими знаниями, ответьте на вопрос:
Провести прямую.2. Провести луч.3. Провести отрезок.4. Провести окружность с данным центром и радиусом.5. На данном луче от его начала отложить отрезок, равный данному.6. Построить перпендикулярную прямую.7. Построить середину отрезка.ответ:
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