Area of the circle = pi*62 = 113.097 square feet to 3 decimal places
130
452.16
130 sq ft
A 2-foot circle has an area of about 3.141 square feet.
Circumference of the circular pool: 20*pi feet
Area = 254 square feet.
19.8
A circle with a 27-foot diameter has an area of 572.56 square feet.
A cylinder with a diameter of 1 foot and 3 feet high has a surface area of 11 square feet.
Assuming the area in question in circular, area = pi*r*r where r, the radius is half the diameter. area = pi*7.5*7.5 = 176.7 square feet.
The surface area of this sphere is 2,827 square feet.
Total surface area of a cylinder = (2*p*radius2)+(pi*diameter*height)Total surface area = 1130.973355 or 1131 square feet to the nearest square foot.
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.
Use the formula area = pi times radius2 to get the area. The radius is half the diameter. A foot is 12 inches, a square foot is 144 square inches.Use the formula area = pi times radius2 to get the area. The radius is half the diameter. A foot is 12 inches, a square foot is 144 square inches.Use the formula area = pi times radius2 to get the area. The radius is half the diameter. A foot is 12 inches, a square foot is 144 square inches.Use the formula area = pi times radius2 to get the area. The radius is half the diameter. A foot is 12 inches, a square foot is 144 square inches.
The area of a 33-foot diameter circle is 855.3 square feet.
A 2-foot circle has an area of about 3.141 square feet.
4 inches = 1/3 of a foot Surface area = pi*1/3*10 = 10.472 square feet rounded to 3 dp
The question has a variable missing. The number and adult size of the fish. The assumed rule if thumb is for every 6 inches of fish in length, 2 square feet of surface area is required. For math purposes, lets make it 4 square feet for each foot of fish. This is to be assumed for the adult size of the fish. If you want 10 fish, at one foot in length, you will need 40 square feet of surface area. If the pond was rectangular, a 4 ft X 10 ft or an 8 ft X 5 ft pond would do. As a square, a 6 and 2/3 ft square pond will give the same surface area needed. As a circular pond, you will need to do some math at this point. The area of a circle is pi (3.14) times the radius (half the diameter) squared. Since a circle has less surface area than a square, we know it will have to be larger in diameter than the 6 and 2/3 feet metioned above. A 7 foot diameter pond will give you, (3.5 radius, or half the diameter, squared is 12.25, then multiplied by pi, or 3.14) 38.465 square feet of surface area. This will support 10 fish at 1 foot in length, or 20 at 6 inches in length. See the related link for more information.
Circumference of the circular pool: 20*pi feet