X=7 you use proportions. If you take one side length, such as 24 and 32 you will see that the polygon with a side of 24 is 3/4 the length of the polygon of 32. So you can say that 6/? = 3/4. Since 3 is half of 6, we can double 3 and 4 to get 6/8. Since the length of the side is subtraction of one, it would be 7