The figures shown are similar. What is the scale factor? A. 1/9 B. 3/7 C. 4/7 D. 6/7
![The figures shown are similar What is the scale factor A 19 B 37 C 47 D 67 class=](https://us-static.z-dn.net/files/da9/ba7ae9f24a20e9bd1a98f87a4556e07f.png)
Answer:
C. 4/7
Step-by-step explanation:
The scale factor is the ratio of corresponding side lengths (the only ones marked with a length).
... 12/21 = 4·3/(7·3) = 4/7