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