Răspuns :
[tex]\it \widehat{BOC}=\stackrel\frown{BC} =\dfrac{360^o}{5}=72^o\\ \\ \\ \widehat{AOB}=\stackrel\frown{AB} =\dfrac{360^o}{5}=72^o\\ \\ \\ \widehat{COD}=\stackrel\frown{CD} =\dfrac{360^o}{5}=72^o[/tex]
[tex]\it \widehat{BOC}=\stackrel\frown{BC} =\dfrac{360^o}{5}=72^o\\ \\ \\ \widehat{AOB}=\stackrel\frown{AB} =\dfrac{360^o}{5}=72^o\\ \\ \\ \widehat{COD}=\stackrel\frown{CD} =\dfrac{360^o}{5}=72^o[/tex]