Answer:
x=11
Explanation:
To find the missing side of the polygon (in this case, 4x-4), find the exact side of the other polygon (which is 48).
To find the side, use the ratio of 6:5-Divide 48 by 6 (8), and then multiply 8 by 5 (40).
So the size of the bottom side of the bottom polygon is 40.
Now, you must find x.
4x-4=40
4x=44
x=11
Hope this helps!