Kurt enlarges a 24cm by 30 cm photo to a 60cm by 70 cm photo what is the scale factor of the enlargement

In two similar geometric figures, the ratio of their corresponding sides is called the scale factor. To find the scale factor, locate two corresponding sides, one on each figure. Write the ratio of one length to the other to find the scale factor from one figure to the other. For the problem above, we will have a scale factor of 60:24, 5:2 or 2.5. Hope this answers the question.