PLEASE HELP POLYGONS

Answer:
JK = 2.5
Step-by-step explanation:
We can find the scale factor of both shapes.
2 / 1 = 2
4 / 2 = 2
3 / 1.5 = 2
So we have a scale factor of two. To find JK, we can divide the side length of AB by the scale factor.
5 / 2 = 2.5
Best of Luck!