What you describe is a cuboid. Assuming 11.9 inches is the height, then the cuboid is precisely 11.9 inches tall. Since this is less than a foot, the only way to describe it in terms of feet and inches is 0 feet 11.9 inches.
31 inches is 2 feet and 7 inches.
31 inches or 2 feet 7 inches
179 cm = 5.872703 ft. ( 5' 10 31/64" approx. )
One foot equals to 12 inches. So divide 31 inches by 12. Then you get 2.58 feet for 31 inches.
31 inches = how many feet and inches 2 feet and 7 inches
31 inches is 2 feet and 7 inches.
31/12 feet
31 inches = about 2.583 feet.
31 centimeters = 12.2 inches
31 feet 0.83 inches.
2 feet 7 inches.
31 inches = 2 feet 7 inches.