Question

use the figure to complete each part.
(a) write two other names for $angle rqs$.
$\boldsymbol{square}$ and $\boldsymbol{square}$
(b) name the vertex of $angle sqt$.
$\boldsymbol{square}$
(c) name the sides of $angle 1$.
$\boldsymbol{square}$ and $\boldsymbol{square}$

Explanation:

(a) An angle can be named by its vertex alone (if unique) or by reversing the side labels, or using its numbered label. ∠RQS has vertex Q, and is also labeled ∠2, and can be written as ∠SQR.
(b) The vertex of an angle is the common endpoint of its two sides; for ∠SQT, the common point is Q.
(c) ∠1 is formed by the two line segments meeting at Q, which are QR and QT.

Answer:

(a) $\angle 2$ and $\angle SQR$
(b) $Q$
(c) $\overrightarrow{QR}$ and $\overrightarrow{QT}$