Question

In Oo, mCD = 50 and CA BD.DWhat is mAB?OABMAB= I need answers ??

Answer 1

$\begin{gathered} \text{mAB}=\measuredangle BOA \\ \end{gathered}$

This is by definition of mAB.

Now, since angle BOA and angle DOC are vertical angles that means they have the same value,

$\begin{gathered} \measuredangle BOA=\measuredangle DOC \\ \Rightarrow \\ \text{mAB}=\measuredangle DOC \end{gathered}$

FInally by definition of mCD

$\text{mCD}=\measuredangle DOC$

this implies that

$\text{mAB}=\text{mCD}=50^{\circ}$

Answer 50 degrees