Answer:
Scale factors will determine whether a shape is similar or not.
Explanation:
Take this sample from
-varsitytutors.com
"The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Here, XYUV=123=4 . So, the scale factor is 4 . Note that when a two-dimensional figure is enlarged ( dilated ) by a scale factor of k , the area of the figure is changed by a factor of k2 ."
Note:
I've put up an image, and a PDF file, that can prove my answer. If your computer doesn't have pdf, then go to your download, right-click, and open with chrome.
Have a nice day, and I hope this helps!
-kiniwih426