Answer:
the lenght of the shortest side is 12
Step-by-step explanation:
So first add them all up becuase perimeter
3x+3x+5x-4+5x-4
You’ll get 16x-8
16x-8=56
16x=64
x=4
So then plug it in
3x=3*4=12
5x-4=5*4-4=16
so 12 is the shortest side
