Предмет: Геометрия, автор: анастасияблэк

Помогите( опять нужно "дано" и "доказательство"

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Автор ответа: chingizidka

Дано сама напишешь, оно на рисунке, списать не трудно
Есть такое свойство : Если две параллельные линии пересечены секущей, то накрест лежащие углы рачны
Значит угол FВД=ВАС
Есть признак параллельных прямых: Если при пересечении двух двух прямых секущей накрест лежащие углы равны, значит они параллельны. Значит АС парал. ВД

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The democratic countries expect their citizens to participate _________ governing the country.
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