Respuesta :

Answer:

[tex]AB=DC=32\ units[/tex]

[tex]AD=BC=24\ units[/tex]

Step-by-step explanation:

we know that

In a parallelogram, opposite sides are parallel and congruent

In this problem we have a parallelogram

so

[tex]DC=AB[/tex]

[tex]AD=BC[/tex]

substitute the given values

[tex]5x-18=2x+12[/tex]

[tex]5x-2x=12+18[/tex]

[tex]3x=30[/tex]

[tex]x=10[/tex]

Find the length of side AB

[tex]AB=2x+12[/tex]

substitute the value of x

[tex]AB=2(10)+12=32\ units[/tex]

Find the length of side CB

[tex]BC=3x-6[/tex]

substitute the value of x

[tex]BC=3(10)-6=24\ units[/tex]

therefore

[tex]AB=DC=32\ units[/tex]

[tex]AD=BC=24\ units[/tex]