Ajutooor rapid !!! Va rog , dau coroana

[tex]\it \stackrel\frown{NS}=\stackrel\frown{SM}=\dfrac{\stackrel\frown{NM}}{2}=\dfrac{120^o}{2}=60^o\\ \\ \\ \stackrel\frown{MN}=360^o-120^o=240^o\\ \\ \\ \widehat{MON}=\stackrel\frown{NM}=120^o[/tex]