Its total surface area is 15614 square feet.
Volume of a cylindrical tank 8 feet in diameter and 8 feet tall is pi x 16 square feet (radius squared) x 8 feet (height) = 402 cubic feet.
The square footage is the footprint: length times width. 7521 square feet.
To get the area you multiply the length and the width. Doing the math gives an answer of 2,560 square feet.
To convert height into square feet, you need to calculate the area. Multiply the height by itself to get the square footage. For example, if the height is 10 feet, the area in square feet would be 10 feet x 10 feet = 100 square feet.
If you are looking for the square footage of the room, the height shouldn't make a difference. So the square footage would just be 10 ft x 10 ft = 100 square feet. If you are looking for surface area of all the walls, floor, and ceiling, that would be 100+100+80+80+80+80 = 520 square feet If you're looking for the cubic footage of the room, then you would use all three dimensions. 8ft x 10ft x 10ft = 800 cubic feet.
the square
The answer depends on whether the shape is a cylinder of a cone (or something else).
Floor and ceiling = (9 x 8) = 72 square feet each Two walls = (9 x 7) = 63 square feet each Other two walls = (8 x 7) = 56 square feet each Total area on all six surfaces inside the room = 382 square feet
The height of the room doesn't matter, so it's just the length times the width, or 21 x 15.
2 feet
The question is mis-specified. You ask for the area but give the dimensions for volume.
184.2 feet high 28.5 feet in diameter