Scale factor is always (new/original)
so it depends which rectangle came first. if it started as large and was dilated to the smaller one, then the ratio is (.5/2.5) which simplifies to 1/5 or 0.2.
Answer:
i need help with this also it is confusing is yours a test???
Step-by-step explanation:
I think this attachment will help you
The answer is going to be 11.98. hope that helped