Question

Which ratio is correct scale factor

Answer 1

Answer: notice the 18 changed to 10? What do you multiply 18 by to get 10?

18(x)=10. Solve it and you’ll know

Explanation:

Answer 2

k =
`(5)/(9)`

Explanation:

Consider the scale factor (k) from T to T', that is the ratio of corresponding sides.

k =
`(20)/(36)` =
`(10)/(18)` =
`(5)/(9)`