91Ó°ÊÓ

Complete the table for regular polygons.

Look for a pattern and predict the next two numbers in each sequence.

$8,\text{ â¶Ä‰}−4,\text{ â¶Ä‰}2,\text{ â¶Ä‰}−1,\text{ â¶Ä‰}\frac{1}{2},\mathrm{....}$

Find the value of

In each exercise some information is given. Use this information to name the segments that must be parallel. If there are no such segments, write none.

$m∠8+m∠5+m∠6=180$

Find the values of $x$and $\mathrm{y}$

Name the two lines and the transversal that form each pair of angles.

and

Complete: If $\stackrel{¯}{AE}||\stackrel{¯}{BD}$then $∠1â‰\dots$ and$∠9â‰\dots$ .

Complete.

If $m∠8=4x,m∠7=30$and $m∠9=6x-20$then

Look for a pattern and predict the next two numbers in each sequence.

Complete.

9. A regular polygon is both $\underline{?}$and $\underline{?}$.