Which the following could represent the scale factor of the smaller figure to the larger figure?

Question

Two pyramids are shown and one is larger than the other. The volume of the smaller pyramid is 216 inches cubed. The volume of the larger pyramid is 343 inches cubed.
There is 2 answers to this question!
216:343
6:7
72:98
648:1029
36:49
30:35

Answer 1

216:343 and 6:7