Предмет: Геометрия, автор: lilanstyyy

Срочно!!!!Даю 20 баллов

Приложения:

Ответы

Автор ответа: lariser532

Ответ:

А4 - два ответа верны "а" и "в", но лучше бери "а". А5-а

Объяснение:

А5 - а, так как ОК общая, а по условию МК= КN

А4- а и в, так как окружность вписанная в четырёхугольник, поэтому по теореме две прилегающие стороны равны двум противолежащим сторонам, то есть AB+BC=AD+CD

и AB+AD=BC+CD

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