Предмет: Геометрия, автор: ddaarriinnoocchhkkaa

помогите пожалуйста!!!!! ​

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Автор ответа: Note503
0

1. AC- спільна, AB=DC, кут ВАС= кут ACD. Трикутники ABC і ACD рівні за двома сторонами і кутом між ними.

2. AD=BC, AC=BD, AB- спільна. Трикутники ABD і ABC рівні за трьома сторонами.

3. АО=ОС, кутА=кутуС, кут ВОА=кутCOD(як вертикальні). Трикутники AOB і COD рівні за стороною і двома прилеглими кутами

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