HOW MANY CUBE FEET IS 39 INCH X 10X1 INCHS

39 in  = 39/12 ft = 3 + 1/4 ft  =   13/4 ft

10 in  = 5/6 ft

1 in =  1/12 ft        .....so......

(13/4) (5/6) (1/12) =

[65 / 288]  ft^3  ≈  .2257 ft^3