I need help, I can’t seem to get the concept

Answer:
x=8
Step-by-step explanation:
Hello
As they are similar we can write
[tex]\dfrac{18}{12}=\dfrac{9}{6}=\dfrac{6}{4}=\dfrac{12}{x} \ so\\\\x = \dfrac{2*12}{3}=2*4=8[/tex]
Hope this helps
Answer:
x = 8
Step-by-step explanation:
The sides of the polygon are similar, meaning each side corresponds with the same side of the smaller polygon.
ex. PQ≈TU , QR≈UV , etc.
Because of this the sides RS and VW are also similar, the polygon is simply being scaled down by 1.5
9÷1.5 = 6 , 6÷1.5 = 4
therefore the side length VW is a scaled down version of RS meaning you take the length of RS , which is 12 , and divide it by 1.5
12 ÷ 1.5 = 8
Hope this helped!