Question

The figure shows the lines , , and intersecting to form the angles numbered 4, 5, 6, 7, 8, and 9. All the lines are in the same plane. Based on the figure, which of the individual statements would provide enough information to concluded that line is perpendicular to line ? Select All that apply.

Answer 1

Answer:

• m∠7+m∠8=90°

,

• m∠9=90°

Explanation:

In the diagram, to show that line j and line k are perpendicular lines, the following statements are individually sufficient.

$\begin{gathered} m\angle7+m\angle8=90\degree \\ m\angle9=90\degree \end{gathered}$