Final answer:
The scale factor compares the lengths of corresponding sides of two similar figures.
Step-by-step explanation:
The scale factor is a ratio that compares the lengths of corresponding sides of two similar figures.
To find the scale factor, you need to compare the corresponding sides of the original figure (YZG) and the dilated figure (RBP).
For example, if the length of YZG is 4 cm and the length of RBP is 8 cm, the scale factor is 8/4, which simplifies to 2.