The area of a rectangle of size L x W would be 400 square feet if L x W = 400, so L and W can be both 20 feet (and this would be a square), or L can be 10 and W can be 40, or even L can be 400 feet and W can be 1 foot.
For a circle with area of 400 square feet, the diameter would be 22.5676 feet = SQRT(400 / PI) * 2.
if you meant perimeter, it still changes. your shape can have nearly any perimeter greater than its circular shape's circumference. you can think of it as a flat one of this explanation: you can make clay be harder to put back in the box because of the shape.
This question cannot be answered sensibly. A square foot is a measure of area, with dimensions [L2]. A foot is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
Just about 400
400 square feet. This is an easy calculation - just multiply the length in feet by the width in feet. The answer is the number of square feet.
400 square feet.
One acre has 43,560 square feet. Divide the number of square feet by that and you get the number of acres. This gives you an answer of 3.67 acres.
That would be 400 square feet. A square yard is 9 square feet. Divide 400 by 9 and you get 44.4 Square yards.
Just about 400
400 square feet
I'm going to say 400.
400 square meters are 4.3 thousand square feet.
400 square feet (20 x 20 = 400)
400 sq cm equals 0.43 square feet.
400 square feet. This is an easy calculation - just multiply the length in feet by the width in feet. The answer is the number of square feet.
400 square feet = 44.4 square yards.
400 square feet.
Answer: 160,000 square feet = 3.67309 acres
25 x 16 = 400 square feet.
400 square feet = 37.16 square meters.