Length X width
Square feet are square feet. There is not a measure called radius square feet.
2178 square feet.2178 square feet.2178 square feet.2178 square feet.
154 square feet.
25 feet by 35 feet = 875 square feet.
800 square feet.
1,323 feet = 9.1875 square feet.
285 square feet.
624 square feet.
1,400 square feet.
There are linear feet, and square feet, but no "linear square feet".
96 square feet
10279 square feet.