You need 1962.5 fence posts.
The square foot area of a 41-foot diameter circle is: 1,320 square feet.
The area of a circle with a 7-foot diameter is: 38.48 square feet.
You should clarify whether "1-foot circle" refers to a circle with a radius of 1 foot, a diameter of 1 foot, or a circumference of 1 foot. The circumference of a circle is equal to the diameter times pi (approximately 3.14).
The diameter of an 8-foot circle is 8 feet. The diameter is the distance across the circle, passing through the center, and in this case, it is equal to the length of the circle's specified diameter. Thus, the diameter remains 8 feet regardless of any other measurements.
The circumference of a 128-foot diameter circle is: 402.12 feet.
The circumference of a 55-foot diameter circle is about 172.8 feet. (C = d x Pi)
1,963.5 ft2
The circumference of a 8 foot diameter circle is about 25.13 feet.
The circumference of a 19 foot diameter circle is: 59.7 feet.
The circumference of circle with 60-foot diameter is: 188 feet.
The square foot area of a 41-foot diameter circle is: 1,320 square feet.
A linear foot is the same as a foot. So, an 18-foot diameter circle would measure 18 linear feet in diameter!
The area of a circle with a 7-foot diameter is: 38.48 square feet.
The diameter of a circle with a 12-foot circumference is about 3.82 feet. (circumference divided by Pi = diameter).
It depends on what you mean by a 7 foot circle.
About 4.5 acres for a 500-foot diameter circle.
A circle with a 7 foot diameter has a circumference of 22 feet (approx).