Предмет: Геометрия, автор: dasha200221

задача 4,5.решите пожалуйста(был уже такой вопрос,но ответов нет((

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Автор ответа: Uturna
0
К 5 не понятно условие. 4. Соеденим В и С. Получим равнобедренный треугольник т.к. каждое ребро состоит из равных отрезков. Следовательно углы при основании равны. Треугольник CEB равен треугольнику BDC т.к. BC общая, угол DBC равен углу ECB, EB=DC по условию т.е. треугольники равны по двум сторонам и углу между ними. Следовательно BD=CD.
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