Scale factor of 1/2.
Step-by-step explanation:
Note that the comparison is figure A to figure B'.
The original measurements that are given are the side measurements of 16 & 6. In comparison to the corresponding parts for the other figure, it would be 8 & 3 respectfully.
Find the factor in which they change by multiplying.
16x = 8
6x = 3
Isolate the variable by dividing:
(16x)/16 = (8)/16
x = 8/16 = 1/2
(6x)/6 = (3)/6
x = 3/6 = 1/2
The scale factor is 1/2.
~