Question

refer to the figure. 12. name two adjacent angles. 13. name two vertical angles.

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common side and a common vertex. In the figure, $\angle MSQ$ and $\angle QSR$ share side $\overrightarrow{SQ}$ and vertex $S$.

Step2: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. In the figure, when lines $\overrightarrow{MQ}$ and $\overrightarrow{SP}$ intersect at point $R$, $\angle MRP$ and $\angle QRS$ are vertical angles.

Answer:

1. $\angle MSQ$ and $\angle QSR$
2. $\angle MRP$ and $\angle QRS$