9 cm² 25 cm² what is the similarity ratio?

1 Answer
May 25, 2018

See explanation.


The theorem says that:

If two figures are simmilar and the scale of similarity is #k# then the ratio of areas of those figures is #k^2#.

In this question we know that the figures are simmilar and we have the areas given, so we can calculate the similarity ratio. From the theorem we know that


If we solve this equation we find that the scale of similarity is: