Question

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

15.9
5:3
3:2
21:14
2:3
20:30

Answer 1

3:2 and 21:14

Explanation:

The same side on the larger and smaller cylinders is 30 and 20 respectively or 18 to 12

Simplify:

30:20 => 3:2

18:12 => 3:2

Therefore, the answer is 3:2

However, in addition you can multiply 3 by 7 to get 21 and 2 by 7 to get 14, so 21:14 also works