64 ft^2 around the outside without a lid or bottom. 69.07 ft^2 with a bottom, 74.14 ft^2 with a top and bottom. Your questions is kind of vague, I assumed that "8 feet round" is the same as "8 foot circumference".
"Feet" and "square feet" don't convert to each other. If they could, then you'd be able to figure out how many square-feet tall you are.
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.
25 x 25 = 625so the answer is 625 square feet.
If this is a round tank, 15 feet wide and 7 feet tall, there would be 1237 gallons.
45
the square
20 square feet.
58.33 square feet
190 square feet
"Feet" and "square feet" don't convert to each other. If they could, then you'd be able to figure out how many square-feet tall you are.
Its total surface area is 15614 square feet.
90 feet
3 feet tall and 3.16cm round
The red square is 2 feet wide by 18 inches tall, outside dimensions of 24 inches horizontally and 18 inches vertically
Nelson's Column is 169 feet tall.
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.
9 square feet = 1 square yard Area of the wall (each side of it) = 9' x 13' = 117 square feet = 13 square yards.