Предмет: Математика, автор: marta6473

На представленном рисунке КМ | АС, СК - биссектриса угла BCA. Найдите угол МКС
, если угол ВМК равен 44°.

Приложения:

Ответы

Автор ответа: Аноним
16

\angle BMK=\angle BCA как соответственные углы при KM \parallel AC и секущей BC. Поскольку CK - биссектриса угла BCA, следовательно, \angle ACK=\angle KCM=\dfrac{\angle BCA}{2}=22^{\circ}.

\angle MKC=\angle KCA=22^\circ как накрест лежащие при AC \parallel KM и секущей CK

Ответ: 22°

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