Please answer both questions 2 and 3

Dear Student, 

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$$\begin{gathered} 1 \left(i\right)In ∆ABD and ∆DCB \\ AD = DC \left(Given\right) \\ AB=BC\hspace{0.17em}\left(Given\right) \\ DB\hspace{0.17em}is common \\ So In ∆ABD \cong ∆DCB \end{gathered}$$
(ii) The second part of the question cannot be deciphered as the image is blurred.

 $$\begin{gathered} 2. In ∆COA and ∆BOD \\ CO =OD (\hspace{0.17em}As CD and AB bisect each other ) \\ AO=OD (\hspace{0.17em}As CD and AB bisect each other ) \\ <AOC =<BOD \\ So ∆COA \cong ∆BOD \end{gathered}$$ 

Regards,