Question

Use the figure to determine the value ofx and y.

Answer 1

The angles x° and 80° are a linear pair, therefore they are supplementary angles, so we have:

`\begin{gathered} x+80=180 \\ x=180-80 \\ x=100 \end{gathered}`

The angles y° and 80° are vertical angles, therefore they are congruent, so we have:

`y=80`