\(\widehat{AOC}=\widehat{BOD}=\dfrac{140^0}{2}=70^0\)
\(\widehat{AOD}=\widehat{BOC}=180^0-70^0=110^0\)
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\(\widehat{AOC}=\widehat{BOD}=\dfrac{140^0}{2}=70^0\)
\(\widehat{AOD}=\widehat{BOC}=180^0-70^0=110^0\)