Respuesta :

Answer:

2

Step-by-step explanation:

Scale factor is [tex]2:1[/tex]

Define parallelogram.

A parallelogram is a quadrilateral in which opposite sides are parallel.

Also, opposite sides of a parallelogram are equal.

Find scale factor of the sides in parallelograms [tex]PQRS,KLMN[/tex],

[tex]PS:KN=18:9[/tex]

               [tex]=\boldsymbol{2:1}[/tex]

[tex]RS:MN=42:21[/tex]

               [tex]=\boldsymbol{2:1}[/tex]

Find out more information about parallelogram here:

https://brainly.com/question/11220936?referrer=searchResults