Answer:
z = 3
Step-by-step explanation:
If two plygons are similar, then corresponding sides are in proportion.
Therefore we have the equation:
[tex]\dfrac{z}{9}=\dfrac{2}{6}[/tex] cross multiply
[tex]6z=(9)(2)[/tex]
[tex]6z=18[/tex] divide both sides by 6
[tex]z=3[/tex]
