Oh, dude, you're hitting me with some math here! So, the area of a circle is π times the radius squared. If the diameter is 40 feet, the radius is 20 feet. Plug that into the formula, and you get an area of 400π square feet. But who's really counting, right?
7.0686 square feet for a 3-foot diameter circle.
50.3 square feet for an 8-foot diameter circle.
803.84 feet
The circumference of a 19 foot diameter circle is: 59.7 feet.
Diameter = 7 feet Radius = 3.5 feet Area of circle = pi x r x r = 3.1415 x 3.5 x 3.5 =38.483 square feet.
The square foot area of a 41-foot diameter circle is: 1,320 square feet.
A 45-foot diameter circle has an area of 1,590.4 square feet.
A circle with a 27-foot diameter has an area of 572.56 square feet.
The area of a circle with a 7-foot diameter is: 38.48 square feet.
153.93804 square feet.
3.14159265 square feet.
A circle with a diameter of 18 feet has an area of 254.5 square feet.
A circle with a diameter of 24 feet has an area of 452 square feet.
7.0686 square feet for a 3-foot diameter circle.
50.3 square feet for an 8-foot diameter circle.
The area is 3318.3 square feet, approx.
The area of a circle is PI times the radius of the circle squared. The radius of a one foot diameter circle it 1/2 or .5 feet. .5 squared is .25 PI is 3.1416 3.1416 times .25 = .79 square feet So, there are about .8 square feet in a 1 foot diameter circle.