Step 4: By the definition of similar polygons, the lengths of corresponding sides are __________. This means that "OK" /"NL" " = " "KM" /"LM" .
Substituting in the lengths, we get "12" /"8" " = " "20 + x" /"x" .
Cross multiply and solve the proportion for x.


Respuesta :

the blank should be proportional.
[tex] \frac{12}{8} = \frac{20 + x}{x} \\ 12x = 160 + 8x \\ 4x = 160 \\ x = 40[/tex]

Answer:

x=40

Step-by-step explanation:

the guy above is correct because i just did this question and got it right