Question

use the figure to complete each part.
(a) write two other names for ∠qmp.
∠pmq and ∠2
(b) name the vertex of ∠pmn.
m
(c) name the sides of ∠1.
mq and mn

Explanation:

• For part (a), an angle can be named by reversing the order of the rays (so $\angle QMP$ can be $\angle PMQ$) and also by its number label ($\angle 2$).
• For part (b), the vertex of an angle is the common endpoint of the rays forming the angle. In $\angle PMN$, the common endpoint of rays $MP$ and $MN$ is $M$.
• For part (c), the sides of an angle are the two rays that form the angle. For $\angle 1$, the rays are $MQ$ and $MN$.

Answer:

(a) $\angle PMQ$ and $\angle 2$
(b) $M$
(c) $MQ$ and $MN$