work

what boxes did you use like you see the green and red box you have to use one of the green and red 

Sorry for the late response; you could use the third green and third red, but split up this shape differently from what I first answered. 

The top half is going to be cut into a rectangle with dimensions 11 and 4. 

This means the area is 11 x 4 = 44 ft²

Then the bottom half has dimensions (11 - 4) and 6. 

This means the area is 7 x 6 = 42 ft²

i just found out which one they are you have to split the shape so its square and rectangle and they use 2 red since there are two shapes now that we spit them up 

You could do that, or you could do this: https://gyazo.com/4becda7448cc74efdcff8657a157bc28