That is the thickness of the studs, -the inside of the wall.
You will need three more bits of information. 1. How high are the walls. 2. What is the length of the room. 3. What is the width of the room. Let me give you an example. Height of walls = 8 ft. Length = 50 ft. Width = 20 ft. Each piece of drywall is 8' X 4'. In this case, the height of the walls exactly matches the height of the drywall; so you won't have to make any cuts in that dimension. Figure out how many sheets you will need for the 50' walls. 50' / 4' = 12 1/2 pieces of drywall. There are two of those 50' walls; so multiply by 2. 12 1/2 X 2 = 25 pieces. Now for the short walls. 20' / 4' = 5 pieces of drywall. Again, there are 2 short walls, so multiply by 2. 5 X 2 = 10 pieces of dry wall. Add what you need for the long walls and short walls. 25 + 10 = 35 drywall sheets. Answer: 35 drywall sheets.
between 26 and 35 inches
35 inches is two feet eleven inches.
35 millimeters = 1.4 inches
35 inches is 0.89 meters.
Since there are 12 inches in a foot, then 35 in = 35/12 = 2.92 feet.
35 inches = 88.9 centimetres
35 inches is 88.9 centimeters.
There are: 35*12 = 420 inches
35 millimetres = 1.37795276 inches
24*35 = 840 square inches
35 centimeters = 13.7795276 inches.