Question

ABCD is parallelogram and m

Answer 1

We have the following:

In a parallelogram, the opposite angles are equal and the sum of all the angles is 360 degrees, therefore

`\begin{gathered} \text{ABC}=\text{ADC} \\ \text{BCD}=\text{DAB} \\ 360=\text{ABC+ADC}+\text{BCD+DAB} \end{gathered}`

solving:

`\begin{gathered} 360=125+125+\text{BCD}+\text{BCD} \\ 2\text{BCD}=360-125-125 \\ \text{BCD}=(110)/(2) \\ \text{BCD}=55 \end{gathered}`

Therefore,