Question

In the given figure, calculate the values of $\angle OBD,\angle BOD$ and $\angle AOD$.

Answer 1

We can see that,

in $△AOD,\angle AOD+{65}^o+{90}^o={180}^o\Rightarrow \angle AOD={25}^o$

and in $△BOD,\angle BOD+{25}^o={90}^o\Rightarrow \angle BOD={65}^o$

and in $△BOA,\angle OBD+{65}^o+{90}^o={180}^o\Rightarrow \angle BOD={25}^o$