https://www.khanacademy.org/math/7th-engage-ny/engage-7th-module-1/7th-module-1-topic-d/v/identifying-scale-factors

https://brainly.com/question/11694243

https://brainly.com/question/12516046

https://study.com/academy/lesson/what-is-a-scale-factor-definition-formula-examples.html

https://www.neenah.k12.wi.us/faculty/jmichal/cms_files/assignment_attach/1742/2.5-2.7RevAnswers.pdf

https://www.bartleby.com/questions-and-answers/4.-find-the-scale-factor-of-figure-b-to-figure-a.-24-21-b-18-20-a-12-15-28/b59e8eec-e563-41dd-a12a-17ddce06977c

https://www.bartleby.com/questions-and-answers/figure-a-figure-b-what-is-the-scale-factor-from-figure-4-to-figure-b/9062f0fc-0b27-4fdd-a737-1db222888a19

https://access.openupresources.org/curricula/our6-8math-v1/7/students/1/practice_problems.html

https://www.varsitytutors.com/hotmath/hotmath_help/topics/scale-factor

https://softmath.com/algebra-word-problems/show.php?id=10521

http://pudunion.or.kr/upload/ancient-science-rbcxaha/37debc-scale-factor-of-4

https://www.cremonaschool.ca/documents/homework/Scale%20Similarity%20Quiz%20KEY.pdf

https://www.studypug.com/geometry-help/scale-diagrams