Answer:
A. 1/5
Step-by-step explanation:
To find scale factor, simply find the length of one side on the copy and divide by the length of the corresponding side on the original.
For instance, the top side of the copy is 1 unit long, and the top side of the original is 5 units long. So, take 1 divided by 5 to get a scale factor of 1/5.
