91Ó°ÊÓ

Name the coordinates of each point.

$\mathit{U}$

Name five ways to prove two lines parallel.

Find the measures of the numbered angles. is regular.

Name the coordinates of each point.

U.

Name five ways to prove two lines parallel.

Find the measures of the numbered angles.$\mathbf{ABCDE}$ is regular.

Draw a diagram that satisfies the conditions stated. If the conditions cannot be satisfied, write not possible.

$\stackrel{\mathbf{→}}{\mathbf{Q}\mathbf{X}}$bisects $\mathbf{∠}\mathit{P}\mathit{Q}\mathit{R}$, $\mathit{m}\mathbf{∠}\mathit{P}\mathit{Q}\mathit{X}\mathbf{=}\mathbf{5}\mathit{x}\mathbf{+}\mathbf{13}$and $\mathit{m}\mathbf{∠}\mathit{X}\mathit{Q}\mathit{R}\mathbf{=}\mathbf{9}\mathit{x}\mathbf{−}\mathbf{39}$ . Find (a) the values of x and (b) $\mathit{m}\mathbf{∠}\mathit{P}\mathit{Q}\mathit{R}$.

Reword Theorem 3-8 as two statements, one describing existence and the other describing uniqueness.

Complete: If $\stackrel{¯}{ED}||\stackrel{¯}{AC}$, $\stackrel{¯}{EB}||\stackrel{¯}{DC}$, and $m∠2=65$, then $m∠8$ and $m∠EDC$ .

Name several lines skew to