Answer:
I believe x = 12
Step-by-step explanation:
If the triangles were similar then they would have the same angle measures.
Steps:
Add angle K and L: 90 + 54 = 144
Subtract the added angles from 180 to find angle J: 180 - 144 = 36
Angle J is similar to angle X so, divide 36 by 3: 36/3 = 12
x = 12
