First one ....not possible
All the sides of the smaller figure would have to be 1/2 the length of the corresponding sides of the larger figure
But note that AE / VZ = 10 /12 = 5 /6
So.....we cannot dilate the first figure to get the second
Second one
One equation is
a / 3 = 5 / 8
Another one is just a variation of this
a / 5 = 3 / 8
