Задача
GEO-B2-M08-P023 ??? ??????? ???????
#23
★★★★★ Уровень 5 из 5
????? \(M\) - ????? ?????? ??????? ???????????????? ? ????????????? \(A,B,C,D,E,F\). ???????? ????????? \(\angle BME=\angle DMF\) ? \(\angle CME=\angle CDE\).
?????? ????????? ??????? ?? ??????????? \((ABE)\) ? \((ADF)\), ?????? - ?? ?????????? \((CDE)\).
??? ??? \(A,B,E,M\) ????????, \(\angle BME=\angle BAE\). ??? ??? \(A,D,F,M\) ????????, \(\angle DMF=\angle DAF\). ???? \(\angle BAE\) ? \(\angle DAF\) ???????? ????? ? ??? ?? ????? ????? ??????? \(l_2\) ? \(l_1\), ?????? \(\angle BME=\angle DMF\). ????? ????, \(C,D,E,M\) ????????; ???? \(\angle CME\) ? \(\angle CDE\) ????????? ?? ????? \(CE\), ??????? ??? ?????.
?????? ????????? ?????????? ?????????? ??????? ???????? ?? ????? ???????????? ??????.