vertical angles
\(N\)and
\(O\)\( \angle N \text{ and } m \angle O = 159^\circ \)
Angle Relationships
Find missing angles in angle relationships from descriptions (easy)
Use the information provided to find the measures of the missing angles.
Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.