Ta có : \(\widehat{xOy}+\widehat{yOt}=180^o\)(vì \(\widehat{xOy}\)kề bù với \(\widehat{yOt}\))
mà \(\widehat{yOt}=\frac{2}{3}\widehat{xOy}\) <=> \(\widehat{\frac{yOt}{2}}=\frac{\widehat{xOy}}{3}=\frac{\widehat{xOy}+\widehat{yOt}}{2+3}=\frac{180^o}{5}=36^o\)
=> \(\widehat{yOt}=36^o.2=72^o\) , \(\widehat{xOy}=36^o.3=108^o\)
yOt= 72o
xOy= 36o