The figures shown are similar. What is the scale factor? A. 1/9 B. 3/7 C. 4/7 D. 6/7

Question

asked May 4, 2019 41.3k views

1 Answer

Marco Fontani · Answer 1 · 2019-05-10T19:09:29+0000

Answer:

C. 4/7

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