Respuesta :
Answer:
The side length will be 12 and 12
Step-by-step explanation:
6x9=54 then divide it by 2.25 = 24 and divide 24 by 2 = 12 and 12
im pretty sure all you have to do is multiply.. 6 times 2.25 equals 13.5 and 9 times 2.25 equals 20.25. hope that helps, but i'm not entirely sure