Final answer:
The two lengths for the ratio 1:2 are 'x' and '2x'.
Step-by-step explanation:
When setting up a ratio of 1:2, you will have two lengths. Let's call the first length 'x'. The second length will be 2 times the value of the first length, so it will be '2x'.
The two lengths for the ratio 1:2 are 'x' and '2x'.